![]() |
Little Gems
http://tjanstrom.com/Littlegems/welcome_to_little_gems.htm
|
||||||||||||||||||||||||||||||||||||||||||
|
Scapolite Sunstone
|
Indicolite - Blue Tourmaline |
||||||||||||||||||||||||||||||||||||||||||
|
|
|||||||||||||||||||||||||||||||||||||||||||
| Indicolite Tourmaline* | |||||||||||||||||||||||||||||||||||||||||||
Color: Blue, occasionally with hints of green. Moh’s Hardness: 7-7.5 Refractive Index: 1.616-1.652 Critical Angle: 38.23° Specific Gravity: 3.02-3.26 Fracture: Uneven, small Conchoidal. Cleavage: None Dispersion: Medium (.017) Heat Sensitivity: Can on occasions be somewhat sensitive and care must be taken when dopping with hot/wax methods. Dichroism: Strong (many color variants) Birefringence (double refraction): Medium (.014-.024) Crystal structure: Hexagonal |
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. | ||||||||||||||||||||||||||||||||||||||||||
| Currently Available. $25/carat. Locality: Nigeria. |
|||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||