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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
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Ruby

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

Metal Clay firing test results; Silver 1200F-1HR-OK, Silver 1475F-1HR-OK, Silver 1650F-2HR OK,  Bronze 1525F-2HR-OK, Copper 1778F-30min-OK



Round Facet

2.50 mm $15.00 each 2 pieces $25.00
3.5 mm $45.00 each 2 pieces $80.00
4.00 mm Out of stock Out of stock



Square Facet

2 x 2 mm 2 pieces $5.00 4 pieces $8.00

 
 
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