There is some gold sheen in the Crazy Pit rough above. All tip submissions are carefully reviewed before being published. If you are unsure about what you need, please visit ourFlintknapping Buyer's Guide, or feel free tocontact usand we will be glad to help. TITLE: Our obsidian spalls are on the small side more for arrow points than knives. View Etsys Privacy Policy. If you are looking for a specific thickness or type, I can accommodate most of the time. Directly to your inbox. Visa. Box price includes shipping within Small Spalls and Flakes Mix - Medium Flat Rate Box - Free Shipping. Continue around the entire edge of the flake, then grind the edges again. There was a problem subscribing you to this newsletter. knapping stone. Our mission continues to provide quality material, tools and service to the knapping community. I do have a few pieces that have a really weird but faint green sheen to them. Note that the term "preform" can refer to either of the above stages. 6.21, 12.44 Knappers who favor pressure flaking techniquesusually enjoyObsidian in particular for itspotentialto run super long flakes. However, do not disturb piles of stone or stone surrounded by flakes and fragments. Add to cart. - Volume 15 Issue 1 2012. In order to contribute to the understanding of the optoelectronics properties of hydrogenated nanocrystalline silicon thin films, a detailed study has been conducted. I have no way of knowing what you will do with the Native American people traded obsidian throughout the Americas. PayPal $5.25 shipping. This article has been viewed 145,512 times. How to Glue Rocks Together for Landscaping: The Best Glue to Use & More. Set where you live, what language you speak, and the currency you use. Ask the experts: 260.587.9501 | Customer Service, Call Us: 260.587.9501 | Customer Service, 2023 Three Rivers Archery Supply, Inc. Three Rivers Archery Supply, Inc. All Rights Reserved. Some is faintly banded. Original Price 24.60 Just make sure you can't be accused of taking flint from the local area if you do it outdoors as taking from the environment can lead to legal action in some areas. Original Price from 11.29 For more advice, look for flint-knapping clubs or classes, often associated with anthropology departments at universities. Obsidian for Flint Knapping. Original Price 11.31 Read our Cookie Policy. A careful analysis of obsidian in a culture or place can be of considerable use to reconstruct commerce, production, distribution and thereby understand economic, social and political aspects of a civilization. The pit has been totally wiped out by illegal commercial mining so unless I stumble on some for sale I won't be getting any more. Box price includes shipping within the domestic United States. Popular varieties of flint, chert, and volcanic glass for flint knapping. Most often a one pound order will contain two pieces of stone in the approx 4 inch range. The samples were deposited by 13.56 MHz PECVD (Plasma-Enhanced Chemical Vapor Deposition) of silane argon mixture. MY ACCOUNT ASK AN EXPERT CART (0) My Account Wishlist. Vol.1 No.3, All Rights Reserved. Offering the highest quality tools and lithics! Most commonly, you would use longer flakes near one end to taper it gradually to an arrow or spear point, while the other end is shaped through smaller flakes into the wider base. FREE shipping Add to Favorites Popcorn Obsidian Slab Polka Dot Obsidian Slice Unique Rough Lapidary Collector Supply 110x59x7.7mm spherulites . It may or may not show well or at all in indirect NONE of this is the pitted, punky junk. Creek rainbow * All rainbow colors in straight or wavy bands. High quality tools delivering top performance. Our unique hand-made items are intended to be displayed or used. $24.99. Another example is the archeological recovery at coastal Chumash sites in California indicating considerable trade with the distant site of Casa Diablo, California in the Sierra Nevada Mountains. charges to the email address you gave to PayPal once I have your order ready to ship. Knapping obsidian, from start to finish, part 1 Kullcraven Bushcraft & Survival 25.3K subscribers Subscribe 146 29K views 9 years ago This video is long tho shows precise strikes and the results.. Ordering 1 pound of this material will not ensure that you will get a single 6 inch spall. Mastercard (Although you could make a knife from some of the larger pieces.) Cookies and similar technologies are used to improve your experience, to do things like: Without these technologies, things like personalized recommendations, your account preferences, or localisation may not work correctly. Remember, you are working from the edge inward. If you pressure flake through the center line, you can easily shatter the stone. This type of data sharing may be considered a sale of information under California privacy laws. Want to know more? Georgetown Flint Spalls 3-6 inch (per lb), Heated Keokuk Chert Spalls 3-6 inch (per lb), Mahogany Obsidian Spalls 3-6 inch (per lb), Georgetown Flint Cleaned Nodules 5-9+ inch -10 lb Lot, Georgetown Flint 2-4 inch Spalls & Flakes (per lb). Daciteis a Cleaned Georgetown Nodules - Medium Flat Rate Box - Free Shipping. This is an insane bargain compared to what I would price each type at! Optical properties of solids . cutter), or cut them down with a trim or tile saw. To create this article, 19 people, some anonymous, worked to edit and improve it over time. Oversize 6+ inch Spalls - Large Flat Rate Box - Free Shipping. Sign up with your email to be notified when this product is back in stock! Fragments left on the ground can cut feet. rainbow colors in bands, many mixed varieties. $12.99. Medium to large #1 graded and cleaned Heated Keokuk Chert spalls. I will not, under any circumstances, ship anything international. Gold Sheen Obsidian Slab. Mahogany Obsidian Flintknapping Spalls Mix - Medium Flat Rate Box - Free Shipping. needles (>10" - 12"+) $0.75 per inch ASK HERE. Flintknapping Spalls Mix - Large Flat Rate Box - Free Shipping Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Flint knapping Spalls Mix (Heat Treated Keokuk, Georgetown Flint, Mahogany Obsidian, Black Obsidian,. December Some HUGE slabs too. Glass Buttes Pumpkin Pit Extremely variable patterns - black, smoky opaque black, pumpkin colored bands, gold sheen. Yes those are bullet holes, it's a popular sport in the countryside. Crystal Structure Theory and Applications, Back to the top. Add to Cart. Contact us today to see how we can get you set up with the finest quality knapping supplies! Keep in mind that anyone can view public collectionsthey may also appear in recommendations and other places. Take full advantage of our site features by enabling JavaScript. The substrate temperature was fixed at 200oC. The pit has been totally wiped out by illegal commercial mining (as in, there isn't any in the tailings or parts of the pit that I tried to get some more from either), so unless a miracle happens I won't be getting any more. Davis Creek Needles Pit Chatoyant Purple This is fantastic sheen obsidian, I was blown away by the first slab I cut (email me for a video, I can't make it play on the website). (50% off), Sale Price 27.20 Etsy uses cookies and similar technologies to give you a better experience, enabling things like: Detailed information can be found in Etsys Cookies & Similar Technologies Policy and our Privacy Policy. You can find many of these on eBay, or you can look for the right stones in nature if you have a geological guide to your local area. These are part of the archaeological record and should be left undisturbed. Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Dacite Spalls. Thanks to all authors for creating a page that has been read 145,512 times. It's back! A smaller one may be easier to use for your first attempt, however. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. All orders shipped 2-3 day priority mail. Sponsored. Utah I cut way too much! I dug lots of this from the Midnite Lace pit so there's a chance of some lace in the mix. An online search does not show any specific organization for flintknapping. Take full advantage of our site features by enabling JavaScript. Box price includes shipping within the domestic United States. Tap the material with a hard object. Box price includes shipping within the domestic United States. Davis Most of what I have is solid shimmering mixed colors with a little black, but some does have the black background. (11% off), Sale Price 157.50 Youll see ad results based on factors like relevancy, and the amount sellers pay per click. Road sign on Hwy 20 at Glass Buttes (long since stolen). It was also polished to create early mirrors. If you collect high quality lithic artwork, please browse our. 2023 Three Rivers Archery Supply, Inc. Three Rivers Archery Supply, Inc. All Rights Reserved. These small spalls and flakes of Obsidian and Dacite are sold by the pound (3-5 pieces per. Flintknapping Supplies, LLC. 2.5" Black Obsidian Preshaped Slab As in, big enough for a spear :). Public collections can be seen by the public, including other shoppers, and may show up in recommendations and other places. Attempting to knap large stone with too small of a billet will damage the billet and not produce sizable thinning flakes early on in the process as needed. A few with deep purple too. Well shaped rough for spalling and knapping, usually whole or nearly whole rounded nodules from about a pound to over 5 pounds. Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Dacite Spalls. LargeUSPS Flat Rate box packed with20 pounds of our #1 graded and cleaned 3-6 inchBlack Obsidian Spalls. If you feel any discomfort, wrap your elbows in a warm, wet towel to relax them before you continue knapping. Road sign on Hwy 20 at Glass Buttes (long since Yellowstone National Park has a mountainside containing obsidian located between Mammoth Hot Springs and the Norris Geyser Basin, and deposits can be found in many other western U.S. states including Arizona, Colorado, New Mexico, Texas, Utah, Washington, Oregon and Idaho. This is an insane bargain compared to what I would price each type at! F. Abels, North-Holland Publ. MediumUSPS Flat Rate box packed with 12 pounds of our 5-9+ inch cleaned and checked raw Georgetown Flint nodules. Snowflake * Classic white snowflakes on a 'de-flaking' a sawn slab of Rainbow Obsidian with my *KnappingDutchman deflaker jig*(tags: flintknapping, flint knapping, glass-slab knapping, pressure flaking) Box price includes shipping within the domestic United States. Medium to large spalls of #1 graded and cleanedblackvolcanic glass. This variety needs no introduction, it speaks for itself! Medium USPS Flat Rate box packed with 12 pounds of our #1 graded and cleaned 3-6 inch Flint knapping Spalls Mix (Heat Treated Keokuk, Georgetown Flint, Mahogany Obsidian, Black Obsidian, Flintknapping Spalls Mix - Large Flat Rate Box - Free Shipping. I have been digging needles for years and never really noticed the boulders at the pit had purple sheen. They're pre-bagged and sold by the pound, so expect a . I can accept debit & credit card payments if you pick up your rocks here! There was a problem subscribing you to this newsletter. C) .362" thick or 9.18 MM Thick D) .341" thick or 8.66 MM Thick A) is black and the other 3 have slight rainbow/silver . (70% off), Sale Price from 3.38 Read our Cookie Policy. We can talk about discounts for large orders. Lapidary Stone Slab! Double Flow * Black & brown or black The rates are now ridiculous as of the January 2021 price increase. Creep problems in structural members, by Yu. via PayPal only or in person! material. Very few samples are nearly colorless. We've sent you an email to confirm your subscription. Gargantuan!!! The thickness on the one with the penny and going clockwise is about A) .563" thick or 14.31 MM Thick B) .512" thick or 13.00 MM Thick. J. Tauc, "Optical Properties of Solids," Abeles, North Holland, Amsterdam, 1972. has been cited by the following article: We are a group of highly skilled flintknappers that specialize in replicating stone tools and Users may download this World Wide Web page for Please Note: I always have slabs available unless the Pre-Columbian Mesoamericans' use of obsidian was extensive and sophisticated; including carved and worked obsidian for tools and decorative objects. Last Updated: August 28, 2019 Flintknapping Obsidian Slab - YouTube 0:00 / 44:44 Flintknapping Obsidian Slab Paleo GreenByrd 535 subscribers Subscribe 5.7K views 4 years ago This video is a basic flintknapping video where I. U.S. $33.60. Most beginners find it easier to make short flakes than long, so this shouldn't be an issue. $39.00 7.25" Keokuk Knapped by Boyd McCammon of Southern Indiana $80.00 Modern Flintknapping Techniques, 2 DVD set sheen and the individual piece. I accept electronic payments or credit cards If you aren't a US citizen and you can give me a US address to ship to that's OK. Add your e-mail address to receive free newsletters from SCIRP. Sale Price from 0.16 Thank you for sharing. Our mission continues to provide quality material, tools and service to the knapping community. Venmo I can't tell if it's this type until I slab it so sorry no rough available. Flintknapping Mega Tool Kit Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. Silicon; PECVD; Deposition Rate; Amorphous Nanocrystalline Transition; Argon; Low Temperature, Seasonal Variation of Nutrient Pollution and Suspended Solids in the Drainage Network of Okpara Basin in Parakou (North-East of Benin), Optical Properties of the Coupling Interface for Planar Optical Waveguides, Optical Properties of Polycrystalline Zinc Selenide Thin Films, Aerosol Optical Properties at Four Sites in Thailand. from 3.38, from 11.29 Sign up to our newsletter for the latest news and special offers. Famous for it's consistency. Once it's gone it's gone unless someone has a 4WD truck that they are willing to beat up to reach the pit. Consistently earned 5-star reviews, shipped orders on time, and replied quickly to messages, Looks like you already have an account! Flint Knapping Utah Obsidian Slab 5 1/2 X 3 GB 8.7 mm THICK PIECE. You may also feel free toContact Uswith any questions. The slower and longer you apply pressure, the longer your flakes will be. you don't want to use PayPal, please CONTACT ME HERE. Some of the finest Georgetown we have had the pleasure of offering. Flintknapping Supplies, LLC. Contact us today to see how we can get you set up with the finest quality knapping supplies! Keep collections to yourself or inspire other shoppers! That is NOT Midnite Lace, it only comes from one pit! Grind the edges of the stone, then fold it into a piece of thick leather. the slabs if you want preforms for knapping (I recommend a tile Lassen Creek Electric Blue * The most amazing rainbow obsidian, vivid blue bands. stolen). personal use only. You've already signed up for some newsletters, but you haven't confirmed your address. By using our site, you agree to our. If you have a core, continue on to the next step, "create a flat platform," or to "use direct percussion" below that if you already have a flat side on your core. A common skill until the discovery of smelting, the human race relied on this technique to create tools and weapons for many years. If you are not sure on where to begin, please visit our Flint Knapping Buyer's Guide fortips ontool selection and stone purchasing. http://www.wildernesscollege.com/making-arrowheads.html, http://flintknappinginfo.webstarts.com/uploads/PressureFlaking.pdf, http://paleoplanet69529.yuku.com/topic/4130/t/IdahoClovisMan-s-Slab-Knapping-Tutorial.html, http://paleoplanet69529.yuku.com/topic/4142/Johnstone-Slab-Knapping-Tutorial, https://www.youtube.com/watch?v=UzZxF9a6aRc, http://www.outsideonline.com/outdoor-adventure/survival-guru/How-can-I-get-started-flintknapping.html. Low Temperature Growth of Hydrogenated Silicon Prepared by PECVD from Argon Diluted Silane Plasma, AUTHORS: Discover Those partners may have their own information theyve collected about you. Medium to large spalls of #1 graded and cleanedblackvolcanic glass. Captcha failed to load. It really doesn't matter where you go to flintknap. Let me know which you prefer and I'll try my best to match (for slabs only). If you are graduating to this size material from one of our kits, we recommend adding a large copper percussion billet to your order. Lots of really nice rough! Georgetown Flint Spalls 3-6 inch (per lb), Heated Keokuk Chert Spalls 3-6 inch (per lb), Mahogany Obsidian Spalls 3-6 inch (per lb), Georgetown Flint Cleaned Nodules 5-9+ inch -10 lb Lot, Georgetown Flint 2-4 inch Spalls & Flakes (per lb). Our obsidian spalls are on the small side more for arrow points than knives. Mad Knapped by Boyd McCammon of Southern Indiana. GOLDEN DRAGONSKIN OBSIDIAN Flint Knapping Primitive Skinning Knife Preform Blank Brand New $12.99 american_lithics (1,692) 99.3% or Best Offer +$4.99 shipping Last one 14 sold Sponsored AMETHYST SAGE AGATE Flint Knapping Primitive Skinning Knife Preform Slab 186 GM Brand New $24.99 american_lithics (1,692) 99.3% or Best Offer +$4.99 shipping Black Obsidian * (translucent to semi-opaque; with and without "bands" or faint sheen) * xiv+82 pages. Davis Length: 1 Hour 46 Minutes Original Price 12.44 $4.00. Free shipping. If you have a flake, continue on to "abrade the edge" below, or directly to the section on pressure flaking if you bought a ready-made flake with a thick, dull edge. Be the first to know about sales, upcoming events, and happenings at 3Rivers Archery! FREE shipping Add to Favorites . "chevron" patterns. View Etsys Privacy Policy. Please. Virtually all of the slabs are cut 13/32" thick +/- 1/32" = halfway between 3/8" and 7/16" (yeah I know that's weird but the thickness of slabs on my saws is adjustable in 1/20th of an inch increments). knapping chert. expressly forbidden. Sold by the pound (1-2 pieces per lb). Mastercard 2.5" Black Obsidian Preshaped Slab From $3.00. These 3-6 inch heat treated Keokuk spalls are particularly well suited Uncleanedheat treated Keokuk chert spalls straight out of the kiln. If you're only getting tiny chips, the angle is probably too large (the blow is too glancing). Glass Buttes Spiderweb/Lizardskin * (I've seen it called both). UTAH SNOWFLAKE OBSIDIAN SLAB ~47 grams/ rough cab agate white black knapping.   Germany   |   English (US)   |   (EUR), remembering account, browser, and regional preferences, remembering privacy and security settings, personalized search, content, and recommendations, helping sellers understand their audience, showing relevant, targeted ads on and off Etsy, remember your login, general, and regional preferences, personalize content, search, recommendations, and offers. Beatys Butte Obsidian This material is from private property on this just about unknown obsidian location. Turning off personalized advertising opts you out of these sales. Learn more in our Privacy Policy., Help Center, and Cookies & Similar Technologies Policy. Miscellaneous Obsidian In addition to black obsidian I am also offering buckets of various obsidian from Glass Buttes and Davis/Lassen Creek at the same price. We use cookies to make wikiHow great. In order to give you the best experience, we use cookies and similar technologies for performance, analytics, personalization, advertising, and to help our site function. $4.50. Yes! Send me exclusive offers, unique gift ideas, and personalized tips for shopping and selling on Etsy. Venmo Black Obsidian Spalls (10lbs) $46.00. 9.05, 18.09 If you are not sure on where to begin, please visit our Flint Knapping Buyer's Guide fortips ontool selection and stone purchasing. Medium USPS Flat Rate box packedSOLID with 18-22 lbs of small, thick,and/or odd shapedpieces of Obsidian and Dacite. The most colorful dovetail point I've ever made. I only have BIG, THICK slabs left. from 0.67, from 2.26 - (1) Piece For tips on turning a larger stone into a flake, keep reading! Some of this is wild stuff! Please try your request again. If the material splits into three pieces, or the platform crumbles around the blow, the angle is probably too small (the blow is too direct). Big slabs (larger than about 7x7") are just under are about 7/16" to 1/2". or Best Offer. knapping flint. To enable personalized advertising (like interest-based ads), we may share your data with our marketing and advertising partners using cookies and other technologies. FlintKnappers.com is a hub for everyone who enjoys modern lithic art work. Davis Creek Gray Banded * gray colors in bands, sometimes with If I am sold out, try the Glass Buttes silver, which is the same thing, only lighter gray as opposed to black in color. Sold by the pound (1-2 pieces per lb). Original Price 29.53 everywhere else; it is much better, from the same pit as the insanely rare Aurora It may contain patterns of gas bubbles remaining from the lava flow, aligned along layers created as the molten rock was flowing before being cooled. $3.00. In Chile obsidian tools from Chaitn Volcano have been found as far away as in Chan-Chan 400 km north of the volcano and also in sites 400 km south of it. The Leader in world class knapping tools and Lithics. Obsidian Slabs for Knapping 4 Large and Thick Total weight of the 4 slabs is about 6 lbs. When I sell out, I take it off. 31, References. Crazy black, clear, and mahogany with occasional gold and sliver sheen in "spiderweb" and other crazy patterns. Etsys 100% renewable electricity commitment includes the electricity used by the data centers that host Etsy.com, the Sell on Etsy app, and the Etsy app, as well as the electricity that powers Etsys global offices and employees working remotely from home in the US. 157.50, 175.00 Original Price from 0.55 The influence of depositions parameters on optical proprieties of samples was studied by UV-Vis-NIR spectroscopy. Maurille P. S. Lanmandjkpogni, Franois De Paule Codo, Benjamin K. Yao, Martin P. Aina, Jerome K. Butler, Maria Martinez, Reyhane Kilci, Gary A. Evans, Umesh Khairnar, Sulakshana Behere, Panjabrao Pawar, S. Janjai, M. Nunez, I. Masiri, R. Wattan, S. Buntoung, T. Jantarach, W. Promsen. Send me exclusive offers, unique gift ideas, and personalized tips for shopping and selling on Etsy. Black Obsidian is a popularvolcanic glass favored by flintknappers for its consistent quality and uniform flaking. Please click on one of thestone categories above, or browse our full line ofavailable stone materialbelow. GIANT slabs available! Learn more A flint knapper is an individual who shapes stone through the process of knapping or striking with another object (lithic reduction). ABSTRACT: Box price includes shipping within the domestic United States. Black Obsidian Spalls - Medium Flat Rate Box - Free Shipping. Intrinsic-layer samples depositions were made in this experiment in order to obtain the transition from the amorphous to crystalline phase materials. Generally speaking, the higher the pitch you hear, the better it is for knapping. Large knapping material requires large billets. To order your 3Rivers Archery catalog, please fill out the catalog order form here and we'll send you our latest catalog FREE. The classic mahogany to red and black bands with nice sheen. Obsidian Slab for Knapping (48 Results) Price ($) Shipping 5 High Quality Obsidian Preform Slabs Assorted Blanks Knapping Knife RockFond (356) $32.95 FREE shipping Bestseller 12 inches Top quality burns green obsidian slabs with colors you aren't going to find again QueensStoneageinc (34) $33.00 Heated when needed. Note: people are calling any old clear obsidian with black bands Midnite Lace. Sold by the pound (1-2 pieces per lb). Iron and magnesium typically give the obsidian a dark green to brown to black color. These small spalls and flakes are sold by the pound (3-5 pieces per lb). Youll see ad results based on factors like relevancy, and the amount sellers pay per click. While you can use your pressure flaker, a flattened steel nail in a wooden handle makes a better notching tool, as the harder metal focuses the energy to a smaller area. So I hauled a few buckets back and they are spectacular. Follow the posture described in this article to reduce the risk of this developing. They can vary from a couple inches to over four inches. I don't know what this is until I slab it so no rough available, sorry. I am supplier of Obsidian, specializing in different varieties of Oregon rainbows, including Aurora Borealis. Pure obsidian is usually dark in appearance, though the color varies depending on the presence of impurities. In efforts to avoid defects as much as possible, we perform a few thinning blows to ensure that you do not pay for large amounts of waste, over thick spalls, or fragile/thin sizes that will shatter with the first strike. I am not that someone until my new-ish truck gets beat down. Heated Keokuk Spalls - Medium Flat Rate Box - Free Shipping. Borealis. Free shipping on many items | Browse your favorite brands . Is that true? Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Flint knapping Spalls Mix (Heat Treated Keokuk, Georgetown Flint, Mahogany Obsidian, Black Obsidian, Georgetown Flint Spalls - Medium Flat Rate Box - Free Shipping. Small to mediumspalls and flakes of#1 graded and cleaned volcanic glass with unique wood-like colorful streaks of brown/dark red and black. I cut some of the really big slabs almost twice as thick as normal (generally 7/16") up to close to an inch thick so there will be an extra charge per square inch for those. creating lithic art. Sale on slabs! LargeUSPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch Georgetown Flint Spalls. There are limitations and higher shipping costs depending on the destination. Our obsidian is normally a natural clear black, sometimes highlighted with reddish streaks. Famous for it's consistency. Davis Mexico Rainbow I think I can get some more but it will be a while yet Mexico Royal Velvet It's back! Large USPS Flat Rate box packed with 20 pounds of our #1 graded and cleaned 3-6 inch heat treated Keokuk Spalls. $17.99. Box price includes shipping within the domestic United States. All Rights Reserved. Related Searches. I accept cash, debit & credit card payments if you pick up your rocks here! This lets archaeologists accurately date your work, and not mistake it for an older artifact. from 0.16, from 0.55 Etsy is powered by 100% renewable electricity. Premium Whole Mahogany Obsidian (20lbs) Flint Knapping Stone 5.0 (2) $6800 $10 delivery Mar 24 - 27 Premium Mixed Obsidian Flint Knapping Spalls (10-18lbs) Flint Knapping Stone 4.6 (15) $5400

Longest Tenured Eagles Players, Stefano Magaddino Wife, Articles K

knapping obsidian slabsNo comment

knapping obsidian slabs