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Little Gems
http://tjanstrom.com/Littlegems/welcome_to_little_gems.htm
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Scapolite Sunstone
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Spinel
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Spinel Cutting Information*: |
Important ordering information: Please note that all prices are listed in Australian dollars and includes 10% GST; for international orders you will receive a 10% discount off the item(s). I will email you a final invoice including postage and insurance which will include a PayPal link for ease of payment. If you wish to pay by check or money order please contact me to make arrangements. | |||||||||||||||||||||||||||||||||||||||||
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Color: Various (ranges from reds through to blues) Moh’s Hardness: 7.0 to 8.0 Refractive Index: 1.712-1.736 Critical Angle: 35.79° Specific Gravity: 3.58-3.61 Fracture: Conchoidal, irregular Cleavage: Imperfect Dispersion: Moderately high (.026) Heat Sensitivity: Not normally (flaws/cracks can be sensitive) Birefringence (double refraction): No Crystal Structure: Isometric |
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Currently Available: $4.00/carat. Origin: Tunduru, Africa. These stones are at the small end of what is coming out of this find. |
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© T. Janstrom 2000-2007