Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Sri Lanka
Color
Green, Colorless, gray, Yellow, White
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
Streak
Colorless
White, Brownish, Brownish, White
For which Rashi?
Libra
Not Available
Planet
Venus
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Not Available
Deities
Freya
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
6.86-7.03
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Cleavage
Distinct on [001]
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
Ca2Al2Si3O12(OH)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Greasy
Pleochroism
AbsentWalter Schumann
Pleochroic haloes have been observed. Dichroic in yellow
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.611-1.673
1.990-2.105
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
tetragonal
Birefringence
0.021-0.033
0.096-0.098
Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent
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
Not Available
Psychology
Not Available
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Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Prehnite Vs Cassiterite Fracture
Fracture is an important parameter when you compare Prehnite and Cassiterite Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite Vs Cassiterite 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 Prehnite is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow. Cassiterite fracture is ConchoidalArthur Thomas, Gemstones (2009), Irregular, Subconchoidal and Uneven.
Prehnite Vs Cassiterite Luster
A primary knowledge about Prehnite vs Cassiterite 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. Prehnite exhibits Vitreous luster. Cassiterite, on other hand, exhibits Adamantine and Greasy luster.