Origin
Color
Streak
For which Rashi?
Planet
Element of Planets
Energy
Finger
Ring Metal
Deities
Not to wear with
Powers
Planetary
Talisman
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
Luster
Pleochroism
Dispersion
Transparency
Refractive Index
Optic Character
Crystal System
Birefringence
Clarity
Neurological
Cardiovascular
Respiratory
Reproductive
Digestive
Psychology
Healing
Qualities Associated
Southern and central Africa
Brown, Brownish, White, Colorless, Yellow
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Weak: yellowish brown yellowAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Uneven, Subconchoidal, Splintery
Good on {110}, poor on {100}
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Enhances mental clarity and focus