Weight: 0.92 carat
Size: 7 x 7 x 7 mm
Gisements: block D, Mérélani, Tanzania.
Chemical composition: Calcium and aluminum silicate
Duration: 6.5 - 7
Refraction index: 1,691 - 1700
Pleochroism very strong: purple, blue, brown.
Treatment: heated natural stone to get a better color.
Tanzanite is considered to be the birthstone of December.
As the name suggests, it comes from Tanzania. Its color of a sustained blue to purple is due to the presence of vanadium and chrome in traces, elements foreign to its structure. So it's an allochromatic mineral. If it is heated to 400-500 degrees Celsius, it loses its yellow and brown tones and its blue becomes deeper.
Macro-mode photos sometimes bring out inclusions that are usually not visible to the naked eye.
I send by mail followed, in a bubble wrap, to ensure the arrival of your order safely.
International shipping: All shipments are by standard international mail follow-up.
Please keep in mind that international shipments can take one to three weeks, depending on customs deadlines.
Please contact me for any questions.
Thank you for your visit!
1-3 business days
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
Just contact me within: 14 days of delivery
Ship items back to me within: 30 days of delivery
Request a cancellation within: 2 days of purchase
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.
Please contact me if you have any problems with your order.