Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Canada
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, pink
Yellow, Brown, Red, White, Green, Reddish, Black
Streak
White
White
For which Rashi?
Libra
-
Planet
Venus, Mars
-
Element of Planets
Water
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Venus
-
Not to wear with
-
-
Powers
Love, Courage
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.85-3.353.89-4.18
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
Indistinct
{0001}, {11 2 0} imperfect
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Resinous
Pleochroism
typically moderate to strong
-
Dispersion
0.020.17
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to opaque
Transparent, Translucent
Refractive Index
1.614-1.6661.687-1.723
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.0400.028-0.030
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Protection
Optimism
Healing
Emotional healing
-
Qualities Associated
Protection
Transformation