Gem Resources International

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Gem Resources
PO Box 62006
Minneapolis, MN 55426

Phone: (612) 664-0252
Toll-Free: (800) 588-8515
E-Mail:
Order Forms:

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Natural Cabochons

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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

2 mm	6 pieces $5.00	12 pieces $8.00
3 mm	6 pieces $5.00	12 pieces $8.00
4 mm	6 pieces $8.00	12 pieces $14.00
5 mm	out of stock	out of stock
6 mm	2 pieces $6.00	4 pieces $10.00
8 mm	2 pieces $9.00	4 pieces $16.00
10 mm	$8.00 each	2 pieces $14.00
12 mm	$15.00 each	2 pieces $25.00

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

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

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