Product Details
＋Custom Order
This piece can be recreated for you. Stones will vary slightly as each stone is one of a kind. For inquiries, email us at [email protected]. [Prices may vary depending on quality and size of stones.]
BIRTHSTONES & ANNIVERSARIES
Tourmaline is a birthstone for October. Tourmaline is also the gem of the 8th wedding anniversary.
- MINERAL:Tourmaline
- CHEMISTRY: Elbaite Na(Li1.5,Al1.5)Al6Si6O18(BO3)3(OH)4 Dravite NaMg3Al6Si6O18(BO3)3(OH)4 Liddicoatite Ca(Li2Al)Al6Si6O18(BO3)3(OH)3F Chromedravite NaMg3Cr6Si6O18(BO3)3(OH)4
- COLOR: All colors
- REFRACTIVE INDEX: 1.624 to 1.644
- BIREFRINGENCE: 0.018 to 0.040
- SPECIFIC GRAVITY: 3.06
- MOHS HARDNESS: 7 to 7.5
