Origin
Southern and central Africa
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Yellow, Blue, Black, Green, gray
Green, Blue, Yellow, Red, Brown, White, Colorless, pink
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
3.43-3.442.85-3.35
1
7.18
👆🏻
Fracture
-
Uneven, Conchoidal
Cleavage
None Observed
Indistinct
Mohs Hardness
6.5-77-7.5
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Luster
Vitreous
Vitreous
Pleochroism
visible
typically moderate to strong
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent, Translucent, Transparent to opaque
Refractive Index
1.696-1.7021.614-1.666
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Triclinic
Trigonal
Birefringence
0.0050.014-0.040
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
-
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Protection