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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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Black Spinel

Natural Black Spinel Cabochon

Hard and high polished, black spinel is a great substitution for black diamonds.

Refraction Index: 1.719
Hardness:  7.5 - 8.0
Specific Gravity:  3.6 - 4.1
Treatment: None
Heat Sensitive: None
Care: Usually safe for ultrasonic and steam cleaning

Beliefs associated with spinel are protective stones that assist in re-establishing relationships and resolving issues, help the wearer to put their ego aside in devotion to another person.

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



Round Cab

3 mm 6 pieces $5.00 12 pieces $8.00
4 mm 6 pieces $6.00 12 pieces $10.00
5 mm 4 pieces $8.00 8 pieces $14.00
6 mm 2 pieces $6.00 4 pieces $10.00
8 mm 2 pieces $8.00 4 pieces $14.00
10 mm $7.00 each 2 pieces $11.00
12 mm $12.00 each 2 pieces $19.00



Oval Cab

6 x 4 mm 6 pieces $8.00 12 pieces $14.00
7 x 5 mm 4 pieces $8.00 8 pieces $14.00
8 x 6 mm 2 pieces $7.00 4 pieces $12.00
10 x 8 mm 2 pieces $10.00 4 pieces $16.00
12 x 10 mm $10.00 each 2 pieces $15.00
14 x 10 mm $12.00 each 2 pieces $19.00
16 x 12 mm $18.00 each 2 pieces $29.00



Square Cab

4 x 4 mm 4 pieces $7.00 8 pieces $12.00
5 x 5 mm 2 pieces $6.00 4 pieces $10.00
6 x 6 mm $5.00 each 2 pieces $8.00
8 x 8 mm $12.00 each 2 pieces $20.00
10 x 10 mm $15.00 each 2 pieces $25.00



Trillion Cab

4 x 4 mm 4 pieces $6.00 8 pieces $10.00
5 x 5 mm 4 pieces $9.00 8 pieces $16.00
6 x 6 mm 2 pieces $7.00 4 pieces $12.00
8 x 8 mm $7.00 each 2 pieces $12.00
10 x 10 mm $9.00 each 2 pieces $16.00
12 x 12 mm $15.00 each 2 pieces $25.00

 
 
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