1 Astrology
1.2 Origin
Not Available, Southern and central Africa
Not Available, blue
1.4 Color
Green, Black, White, Grey, Green, Black, White, Grey, Green, Black, gray, Black, Green, Black, gray, Black
Blue, Blue, Green, Blue, Blue
1.8 Streak
1.11 For which Rashi?
Not Available
Sagittarius, Capricorn, Sagittarius, Capricorn, Sagittarius, Capricorn
1.14 Planet
1.17 Element of Planets
1.20 Energy
1.23 How to Wear?
1.23.1 Finger
Not Available
Not Available
1.0.2 Ring Metal
Not Available
Not Available
1.4 Deities
1.7 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Psychic Power
1.15 Birthstone
1.15.3 Planetary
Not Available
Not Available
1.0.2 Talisman
Not Available
Not Available
3 Physical Properties
3.3 Tenacity
3.7 Solubility
Not Available
Not Available
3.13 Durability
Not Available
Not Available
3.18 Specific Gravity
5.10 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
5.13 Cleavage
perfect along {110}.
Perfect on {011}, fair on {100}, poor on {110}
5.14 Mohs Hardness
6.3 Chemical Composition
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
7 Optical Properties
7.1 Luster
7.2 Pleochroism
moderate
Visible shades of blue
7.3 Dispersion
10.8 Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
Transparent, Translucent
10.9 Refractive Index
1.613-1.6281.720-1.850
1
3.25
10.18 Optic Character
Not Available
Not Available
10.20 Crystal System
10.21 Birefringence
0.0250-0.02700.108
0
0.296
11.2 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
12 Benefits
12.1 Physical
12.1.1 Neurological
Not Available
Not Available
12.1.3 Cardiovascular
Not Available
Not Available
12.1.5 Respiratory
Not Available
Not Available
12.2.1 Reproductive
Not Available
Not Available
12.3.1 Digestive
Not Available
Not Available
12.5 Psychology
Not Available
Not Available
12.6 Healing
Not Available
Not Available
12.7 Qualities Associated
Not Available
Not Available