Gem Resources Header
Gem Resources International
Gem Resources
PO Box 62006
Minneapolis, MN 55426

Phone: (612) 664-0252
Toll-Free: (800) 588-8515
Order Forms: PDF WORD
    You have 1 (1) gems in your cart. View Cart

News & Specials

May Specials
Up to 50% off normal prices.
Lab Cab & Faceted checkerboard cut Zirconia, Lab Ruby, Spinel, Zircon, Green Garnet, Reconstructed Ruby, & More!

Metal clay heating tests.
Shop Talk Gem Info

Join My Mailing List
You just added an item to your cart

Obsidian Rainbow Closeout

Natural Rainbow Obsidian Cabochon

Obsidian is natural glass of volcanic origin that is formed by the rapid cooling lava. It has a glassy luster and is slightly harder than window glass. It is typically black, but the presence of minerals may create a golden sheen,silver sheen and rainbow colors. Obsidian was used by American Indians and others for weapons, implements, tools, and ornaments, and by the ancient Aztecs and Greeks for mirrors.

Safe to fire in metal clay 1200 degrees, slow ramp.

Round Cabochon

8 mm $6.00 each Closeout 4 pieces $6.00

Designed by
 Copyright © GRI
Home | Show Info | Classes | About Us | Gem Info | Policies | Contact Us