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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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Honey Zircon |
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| Honey Zircon* | |||||||||||||||||||||||||||||||||
Colour: Brown, red, orange, yellow/orange/brown Moh’s hardness: 6.5-7.5 Type - Normal (high R.I.): Sometimes called high Zircon1.94-1.987 normal (higher refractive index) zircon is usually found in crystal form. Critical Angle: 30.33° Type - Metamict (lower R.I.): Sometimes called low Zircon: 1.777-1.79 Metamict (lower refractive index) Zircon is usually found as river-worn pebbles Critical Angle: 34.40° Specific Gravity: 3.9-4.71 Fracture: Conchoidal, very brittle. Cleavage: Imperfect 2 directions. Dispersion: Strong (.038) Heat Sensitivity: Yes. Dichroism: Moderate to weak depending on colour Birefringence (double refraction): Strong (.06) Crystal structure: Tetragonal |
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. | ||||||||||||||||||||||||||||||||
| Currently Available. $8/carat. Locality: Africa. |
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© T. Janstrom 2000-2007