1 Astrology
1.1 Origin
Not Available
Brazil, Southern and central Africa
1.6 Color
1.11 Streak
1.13 For which Rashi?
Capricorn
Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius
1.16 Planet
1.20 Element of Planets
Not Available
Not Available
1.25 Energy
1.29 How to Wear?
1.29.3 Finger
Not Available
Not Available
1.29.4 Ring Metal
Not Available
Not Available
1.30 Deities
1.31 Not to wear with
Not Available
Not Available
3.3 Powers
3.4 Birthstone
3.4.1 Planetary
Not Available
Not Available
3.7.1 Talisman
5 Physical Properties
5.1 Tenacity
Not Available
Not Available
5.4 Solubility
Not Available
Not Available
5.6 Durability
Not Available
Not Available
5.8 Specific Gravity
2.55-2.703.04-3.17
1
7.18
5.18 Fracture
Not Available
Uneven, Uneven, Gemstones of the world (2001) More from other references
5.19 Cleavage
Indiscernible
{001} Indistinct, {???} Indistinct
5.20 Mohs Hardness
8.7 Chemical Composition
SiO2
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
9 Optical Properties
9.1 Luster
9.2 Pleochroism
Not Available
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
9.3 Dispersion
9.10 Transparency
Translucent, Opaque, Translucent to opaque
Transparent, Translucent
9.11 Refractive Index
1.530-1.5431.604-1.646
1
3.25
9.21 Optic Character
Not Available
Not Available
9.22 Crystal System
9.23 Birefringence
Not Available0.031-0.036
0
0.296
12.11 Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
13 Benefits
13.1 Physical
13.1.1 Neurological
Not Available
Not Available
13.1.2 Cardiovascular
Not Available
Not Available
13.1.3 Respiratory
Not Available
Not Available
13.1.4 Reproductive
Not Available
Not Available
13.1.5 Digestive
Not Available
Not Available
13.2 Psychology
Not Available
Not Available
13.3 Healing
Not Available
Not Available
13.4 Qualities Associated
Not Available
Not Available