Color
Blue, Green, Greenish, Black
Colorless, Blue, Violet, White, Brown, Colorless, Blue, Violet, White, rose, Brown, gray, Colorless, White, Violet, gray, Colorless, White, Violet, gray
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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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
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Brittle
Solubility
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Durability
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Specific Gravity
4.00-4.62
2.90-2.98
Fracture
Conchoidal, Uneven
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Indistinct parting on [111]
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Pearly, Greasy
Pleochroism
Not Available
For violet varieties
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.790-1.818
1.570-1.614
Optic Character
Not Available
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Crystal System
cubic
Orthorhombic
Birefringence
Not Available
0.042-0.044
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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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Gahnite Vs Anhydrite Fracture
Fracture is an important parameter when you compare Gahnite and Anhydrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Anhydrite 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 Gahnite is Conchoidal and Uneven. Anhydrite fracture is Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, Gemstones (2009) and UnevenArthur Thomas.
Gahnite Vs Anhydrite Luster
A primary knowledge about Gahnite vs Anhydrite 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. Gahnite exhibits Vitreous luster. Anhydrite, on other hand, exhibits Greasy and Pearly luster.