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 0 () gems in your cart. View Cart

News & Specials

December Specials!
Up to 50% off normal prices.
Synthetic Blue Sapphire, Moonstone, Green Aventurine, Carnelian, Brazilian Amazonite, Coral & More.

Gem stone metal clay heating tests.
Shop Talk Gem Info

Join My Mailing List


Natural Tourmaline Cabochons

Hardness: 7 - 7.5
Refractive Index: 1.624  -  1.644
Specific Gravity: 3.06  
Care: Wash with mild soap and water. Never steam or ultrasonically clean
Some Inclusions

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