Origin
Sri Lanka, India, Brazil
Italy
Color
Green, Brown, Brown, Colorless, Green, gray, Yellow
Green, Green, gray, Brown, Black
Streak
Brownish, White, Brownish, White
Greenish, White, Greenish, White
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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Solubility
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Durability
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Specific Gravity
3.55-3.73
2.58-2.80
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Mohs Hardness
7-7.5
5-5.5
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Greasy, Vitreous
Waxy, Silky, Resinous, Greasy
Pleochroism
None
pale greenish yellow.
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.730-1.760
1.530-1.575
Optic Character
Not Available
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Crystal System
cubic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Birefringence
0.020
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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 Antigorite Fracture
Fracture is an important parameter when you compare Grossular and Antigorite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular Vs Antigorite 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 Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Antigorite fracture is Brittle, Conchoidal, Conchoidal, Handbook of mineralogy (2001) and Metallic.
Grossular Vs Antigorite Luster
A primary knowledge about Grossular vs Antigorite 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. Antigorite, on other hand, exhibits Greasy, Resinous, Silky and Waxy luster.