1 Astrology
1.1 Origin
Switzerland
1.2 Color
Brown, Brownish, Yellow, Black, Reddish
1.3 Streak
White, gray
1.4 For which Rashi?
Not Available
1.5 Planet
Not Available
1.6 Element of Planets
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
1.7.2 Ring Metal
Not Available
1.8 Energy
Not Available
1.9 Deities
Not Available
1.10 Not to wear with
Not Available
1.11 Powers
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
1.12.2 Talisman
Not Available
2 Physical Properties
2.1 Tenacity
Brittle
2.2 Solubility
Not Available
2.3 Durability
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
Distinct on {010}
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Resinous
3.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
3.3 Dispersion
Not Available
Rank: N/A (Overall) ▶
0.007
1
3.4 Transparency
Blue Chart Gem Identification (2010) More from other references
3.5 Refractive Index
3.6 Optic Character
Not Available
3.7 Crystal System
monoclinic
3.8 Birefringence
3.9 Clarity
Blue Chart Gem Identification (2010) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
4.1.2 Cardiovascular
Not Available
4.1.3 Respiratory
Not Available
4.1.4 Reproductive
Not Available
4.1.5 Digestive
Not Available
4.2 Psychology
Not Available
4.3 Healing
Not Available
4.4 Qualities Associated
Not Available