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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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Opal. |
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| Opal. - Cutting Information, all colours.* | |||
Colour: Colourless, yellow, orange, red Moh’s Hardness: 5-6.5 Refractive Index: 1.44-1.46 Critical Angle: 43.98° Specific Gravity: 1.9-2.23 Fracture: Conchoidal, brittle, splinters with ease. Cleavage: None Dispersion: None Heat Sensitivity: Moderate to high (err on the side of high sensitivity). Birefringence (double refraction): None Crystal Structure: Amorphous |
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 of 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. | ||
© T. Janstrom 2000-2007