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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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Peridot |
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| Peridot* | |||||||||||||||||||||||||||
Colour: Yellow-green, apple-green, olive/green Moh’s Hardness: 6.5-7 Refractive Index: 1.654-1.69 Critical Angle: 37.31° Specific Gravity: 3.27-3.37 Fracture: Brittle, small Conchoidal Cleavage: Imperfect Dispersion: Moderately high (.02) Heat Sensitivity: Yes, in my experience Dichroism: Weak Birefringence (double refraction): Medium (.036) Crystal Structure: Orthorhombic Treatments: Generally none, but may be oiled or opticonned; if so avoid it! |
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 to $30/carat. Locality: Afghanistan. This material is a nice medium apple green, looks almost like chrome green when cut right. |
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© T. Janstrom 2000-2007