Grossular Vs Coral
Origin
Sri Lanka, India, Brazil
Southern and central Africa, Orange, blue, Orange, blue
Color
Green, Brown, Brown, Colorless, Green, gray, Yellow
White, Blue
Streak
Brownish, White, Brownish, White
Not Available
For which Rashi?
Not Available
Pisces
Planet
Not Available
Neptune
Element of Planets
Not Available
Water
Energy
Not Available
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
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Venus
Not to wear with
Not Available
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Powers
Not Available
Healing, Protection
Planetary
Not Available
Not Available
Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.55-3.73
2.60-2.70
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Irregular, Irregular, Gemstones of the world (2001)
Cleavage
none
Not Available
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
CaCO 3Ulrich Henn and Claudio C.
Luster
Greasy, Vitreous
Not Available
Pleochroism
None
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.730-1.760
1.486-1.658
Optic Character
Not Available
Not Available
Crystal System
cubic
Trigonal
Birefringence
0.020
0.160-0.172
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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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Grossular Vs Coral Fracture
Fracture is an important parameter when you compare Grossular and Coral Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular Vs Coral 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), Conchoidal and Brittle. Coral fracture is Irregular, Irregular and Gemstones of the world (2001).
Grossular Vs Coral Luster
A primary knowledge about Grossular vs Coral 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.