Dravite Vs Gibbsite
Origin
Southern and central Africa
Not Available
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
Green, White, gray, Green, White, gray
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
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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
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.03-3.18
2.35
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Fibrous, Difficult, Fibrous
Cleavage
{???} Indistinct
{001} Perfect
Mohs Hardness
7-7.5
2.5-3
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Al(OH)3
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Very strong: pale yellow colorless
colorless.
Transparency
Transparent
Not Available
Refractive Index
1.614-1.666
Not Available
Optic Character
Not Available
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Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
monoclinic
Birefringence
0.014-0.032
Not Available
Clarity
Transparent
Not Available
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 Gibbsite Fracture
Fracture is an important parameter when you compare Dravite and Gibbsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Gibbsite 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. Gibbsite fracture is Difficult, Fibrous and Fibrous.
Dravite Vs Gibbsite Luster
A primary knowledge about Dravite vs Gibbsite 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. Gibbsite, on other hand, exhibits Pearly and Vitreous luster.