Origin
Sri Lanka
  
Southern and central Africa
  
Color
Blue
  
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
  
Streak
Not Available
  
Colorless
  
For which Rashi?
Sagittarius, Scorpio
  
Not Available
  
Planet
Pluto
  
Not Available
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Projective
  
Not Available
  
Deities
Hephaestus
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Money
  
Not Available
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.65-4.55
  
3.03-3.18
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
None, but may exhibit slight parting
  
{???} Indistinct
  
Mohs Hardness
7.5-8
  
7-7.5
  
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
  
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
AbsentWalter Schumann
  
Very strong: pale yellow colorless
  
Dispersion
Not Available
  
Transparency
Gemmological Tables (2004)
  
Transparent
  
Refractive Index
1.735-1.790
  
1.614-1.666
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Isometric
  
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
  
Birefringence
Not Available
  
0.014-0.032
  
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
  
Transparent
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
Not Available
  
Reproductive
Not Available
  
Not Available
  
Digestive
Not Available
  
Not Available
  
Psychology
Not Available
  
Not Available
  
Healing
Not Available
  
Not Available
  
Qualities Associated
Not Available
  
Not Available
  
Gahnospinel Vs Dravite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Gahnospinel Vs Dravite specifications, it helps you to decide which gemstone suits your zodiac sign. Besides, the extent to which a gemstone benefits you can be understood after comparing Gahnospinel and Dravite Astrology. Its highly necessary to have a basic knowledge of facts about Gahnospinel and Dravite, before you finalize to buy one.
Gahnospinel is known to regulate the influence of Pluto planet.Gahnospinel, that occurs commonly in Blue color, possesses Projective energy.Dravite, the unique gem is known to regulate the influence of Not Available planet.