Dravite Vs Ivory
Origin
Southern and central Africa
  
Southern and central Africa
  
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
  
White
  
Streak
Colorless
  
Not Available
  
For which Rashi?
Not Available
  
Not Available
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Not Available
  
Deities
Not Available
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
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
3.03-3.18
  
1.70-2.00
  
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Not Available
  
Cleavage
{???} Indistinct
  
Not Available
  
Mohs Hardness
7-7.5
  
2-3
  
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Not Available
  
Luster
Vitreous
  
Not Available
  
Pleochroism
Very strong: pale yellow colorless
  
NoneWalter Schumann
  
Dispersion
None
  
Transparency
Transparent
  
Translucent
  
Refractive Index
1.614-1.666
  
1.535-1.570
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
  
Not Available
  
Birefringence
0.014-0.032
  
Not Available
  
Clarity
Transparent
  
Translucent
  
Physical
  
  
Neurological
Not Available
  
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Cardiovascular
Not Available
  
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Respiratory
Not Available
  
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Reproductive
Not Available
  
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Digestive
Not Available
  
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Psychology
Not Available
  
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Healing
Not Available
  
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Qualities Associated
Not Available
  
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Dravite Vs Ivory Fracture
Fracture is an important parameter when you compare Dravite and Ivory Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Ivory fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Dravite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Irregular, Uneven and Uneven.
Dravite Vs Ivory Luster
A primary knowledge about Dravite vs Ivory luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Dravite exhibits Vitreous luster.