Grossular Vs Zoisite
Origin
Sri Lanka, India, Brazil
Pakistan, Tanzania
Color
Green, Brown, Colorless, gray, Yellow
Brown, gray, Green, Blue, rose, Red
Streak
Brownish, White
White, Colorless
For which Rashi?
Not Available
Not Available
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
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Solubility
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Durability
Not Available
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Specific Gravity
3.55-3.73
3.20-3.50
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Cleavage
none
Perfect {010} imperfect {100}
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca2Al3(SiO4)3(OH)
Luster
Greasy, Vitreous
Vitreous
Pleochroism
None
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.730-1.760
1.685-1.707
Optic Character
Not Available
Not Available
Crystal System
cubic
Orthorhombic
Birefringence
0.020
0.006-0.018
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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Grossular Vs Zoisite Fracture
Fracture is an important parameter when you compare Grossular and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular Vs Zoisite 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 Grossular is Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009) and Brittle. Zoisite fracture is Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Even.
Grossular Vs Zoisite Luster
A primary knowledge about Grossular vs Zoisite 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. Grossular exhibits Greasy and Vitreous luster. Zoisite, on other hand, exhibits Vitreous luster.