Dravite Vs Uvarovite
Origin
Southern and central Africa
China, Russia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Green
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Solubility
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Durability
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Specific Gravity
3.03-3.18
3.77
Fracture
Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Conchoidal, Brittle, Metallic, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{???} Indistinct
None
Mohs Hardness
7-7.5
6.5-7.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.
Pleochroism
Very strong: pale yellow colorless
Not Available
Transparency
Transparent
Translucent
Refractive Index
1.614-1.666
1.87
Optic Character
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Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
cubic
Birefringence
0.014-0.032
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Clarity
Transparent
Translucent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Dravite Vs Uvarovite Fracture
Fracture is an important parameter when you compare Dravite and Uvarovite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Uvarovite 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 Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal and Brittle. Uvarovite fracture is Uneven, Conchoidal, Brittle, Metallic, ConchoidalArthur Thomas and Gemstones (2009).
Dravite Vs Uvarovite Luster
A primary knowledge about Dravite vs Uvarovite 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. Uvarovite, on other hand, exhibits Vitreous luster.