Grandidierite Vs Caledonite
Color
Green
Blue, Green, Blue, Green, Green
Streak
White
Blue, 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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Brittle
Solubility
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Durability
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Specific Gravity
2.85-3.00
5.6-5.76
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
Perfect
[001] perfect; [100] distinct
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
Vitreous
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.578-1.639
1.818-1.909
Optic Character
Not Available
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.037-0.039
0.091
Clarity
Gemmological Tables (2004) More from other references
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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Grandidierite Vs Caledonite Fracture
Fracture is an important parameter when you compare Grandidierite and Caledonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Caledonite 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 Grandidierite is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas. Caledonite fracture is Handbook of mineralogy (2001), Uneven and UnevenAnthony et al.
Grandidierite Vs Caledonite Luster
A primary knowledge about Grandidierite vs Caledonite 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. Grandidierite exhibits Pearly and Vitreous luster. Caledonite, on other hand, exhibits Vitreous luster.