Zoisite Vs Grandidierite
Origin
Pakistan, Tanzania
Madagascar
Color
Brown, gray, Green, Blue, rose, Red
Green
Streak
White, Colorless
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
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Not to wear with
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Powers
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.50
2.85-3.00
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Perfect {010} imperfect {100}
Perfect
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Pearly
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
visible
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Gemmological Tables (2004) More from other references
Refractive Index
1.685-1.707
1.578-1.639
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.006-0.018
0.037-0.039
Clarity
Transparent
Gemmological Tables (2004) More from other references
Neurological
Not Available
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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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Zoisite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Zoisite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Grandidierite 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 Zoisite is Conchoidal, ConchoidalArthur Thomas, Even, Gemstones (2009) and Uneven. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Zoisite Vs Grandidierite Luster
A primary knowledge about Zoisite vs Grandidierite 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. Zoisite exhibits Vitreous luster. Grandidierite, on other hand, exhibits Pearly and Vitreous luster.