Prehnite Vs Grossular
Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Sri Lanka, India, Brazil
Color
Green, Colorless, gray, Yellow, White
Green, Brown, Brown, Colorless, Green, gray, Yellow
Streak
Colorless
Brownish, White, 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
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Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
3.55-3.73
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Distinct on [001]
none
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
Ca2Al2Si3O12(OH)
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
AbsentWalter Schumann
None
Transparency
Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.611-1.673
1.730-1.760
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
cubic
Birefringence
0.021-0.033
0.020
Clarity
TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda
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
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Prehnite Vs Grossular Fracture
Fracture is an important parameter when you compare Prehnite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite Vs Grossular 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. Grossular fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Prehnite Vs Grossular Luster
A primary knowledge about Prehnite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.