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

Phone: (612) 664-0252
Toll-Free: (800) 588-8515
E-Mail: gri@gemresources.com
Order Forms: PDF WORD
Search:
    You have 0 () gems in your cart. View Cart

News & Specials

March Specials Up to 50% off price
Amethyst, Blue Chalcedony, Garnet, Hessonite, Aquamarine & more!
Garn
Gem stone metal clay heating tests.
Shop Talk Gem Info

Join My Mailing List

Ruby

Natural Ruby Cabochon

July birthstone, these cabochon Rubies are high quality, well cut. Great for jewelry design. These genuine gemstones will help you create beautiful finished cabochon jewelry.  Beliefs, Ruby brings love, confidence, loyalty, and courage.

Hardness: 9
Refractive index: 1.76
Specific Gravity: 4.0
Dispersion: .018 medium
Species: Corundum
Heat Sensitivity: None
Treatment: Heat Treated

Metal Clay, safe to fire.
Test results; Silver 1200F-1HR-OK, Silver 1475F-1HR-OK, Silver 1650F-2HR OK,  Bronze 1525F-2HR-OK, Copper 1778F-30min-OK

 
 
Designed by 4ss.net
 Copyright © GRI
Home | Show Info | Classes | About Us | Gem Info | Policies | Contact Us