Anhydrite Vs Poldervaartite
Origin
Mexico
Southern and central Africa
Color
Colorless, Blue, Violet, White, Brown, Colorless, Blue, Violet, White, rose, Brown, gray, Colorless, White, Violet, gray, Colorless, White, Violet, gray
Colorless, White
For which Rashi?
Not Available
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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
Brittle
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.90-2.98
2.91
Fracture
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Handbook of mineralogy (2001)
Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
None
Mohs Hardness
3.5
Not Available
Chemical Composition
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Luster
Pearly, Greasy
Vitreous
Pleochroism
For violet varieties
Weak: colorless light gray bluish grayAnthony et al
Transparency
Transparent
Transparent
Refractive Index
1.570-1.614
1.634-1.656
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Not Available
Birefringence
0.042-0.044
Not Available
Clarity
Transparent
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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Anhydrite Vs Poldervaartite Fracture
Fracture is an important parameter when you compare Anhydrite and Poldervaartite Physical Properties. It is necessary to understand the significance of these properties, before you compare Anhydrite Vs Poldervaartite 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 Anhydrite is Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal. Poldervaartite fracture is Handbook of mineralogy (2001).
Anhydrite Vs Poldervaartite Luster
A primary knowledge about Anhydrite vs Poldervaartite 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. Anhydrite exhibits Pearly and Greasy luster. Poldervaartite, on other hand, exhibits Vitreous luster.
