Origin
Southern and central Africa
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
Color
Violet, Black
Violet, White, gray, Brown, pink, Yellow
Streak
gray, White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.172.58-2.74
1
7.18
👆🏻
Fracture
-
ConchoidalWalter Schumann, Splintery
Cleavage
None
{100} Distinct, {110} Distinct
Mohs Hardness
75.5-6
2
10
👆🏻
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
-
Pleochroism
Strong: pale lavender dark blueAnthony et al
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
TranslucentAnthony et al, Translucent
-
Refractive Index
-99991.540-1.579
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
tetragonal
Birefringence
-99990.006-0.037
0
0.296
👆🏻
Clarity
TranslucentAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Empowerment
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Problem Solving & Creativity