Origin
Madagascar
Brazil, USA, Switzerland, Kenya, Mozambique, Russia, Nepal, India, Burma
Color
Green
Blue, Yellow, Colorless, White, gray, Green, Black
For which Rashi?
Not Available
Aries, Libra, Taurus, Aries, Libra, Taurus, Aries, Libra, Taurus
Planet
Not Available
Jupiter
Element of Planets
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Water
Finger
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Ring Metal
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Energy
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Receptive
Deities
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Endurance, Meditation, Love
Not to wear with
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Powers
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Love
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
3.53-3.65
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Splintery, Brittle, Metallic
Cleavage
Perfect
[100] perfect [010] imperfect with 79° angle between
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Not Available
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
visible
Trichroic
Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.578-1.639
1.71-1.74
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Triclinic
Birefringence
0.037-0.039
Not Available
Clarity
Gemmological Tables (2004) More from other references
Color grading system
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 Kyanite Fracture
Fracture is an important parameter when you compare Grandidierite and Kyanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Kyanite 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. Kyanite fracture is Brittle, Metallic and Splintery.
Grandidierite Vs Kyanite Luster
A primary knowledge about Grandidierite vs Kyanite 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. Kyanite, on other hand, exhibits Pearly and Vitreous luster.