Fiber Optic Glass Block Rough Yellow for Flintknapping & Lapidary

This new yellow fiber optic glass block rough is suitable for flintknapping, lapidary work, cabochons, and slab cutting. It can be used for practice pieces, small projects, or adding color to handmade designs. Specific dimensions, weight, and exact material details are not provided—check the listing for details. Priced at $75.00 USD, this item ships with free shipping. Review the listing photos and any seller notes to confirm color, size, and compatibility with your tools before purchase.

Before you buy

• Ungraded cards can vary—zoom in on photos for surface, corners, and centering.
• If it’s a “pick your card/insert” listing, confirm the exact card name/number in the listing.
• Review shipping rules (combined shipping / envelope vs mailer) on the listing.

This block of YELLOW Fiber optic glass measures 9 1/2 inches by 4 3/4 inches by 1 1/4 inches and weighs around 5.7 poundsFiber optic glass is a man-made glass composed of millions of glass fibers that have been fused into a block. This creates a reflective characteristic known as cat-eye. This material can be slabbed easily with a diamond blade. It is a great material for making cabochons as well as flint knapping into arrowheads, spears, or other shapes.Photos were taken under sunlight while wetI will combine pieces together to get you the best shipping prices.We have been selling rough rock and slabs in Quartzsite, Arizona for over 11 years. If you are looking for something specific, please contact us and we may be able to find a piece we could list for you.