Grandidierite Vs Pectolite
Origin
Madagascar
Canada, Southern and central Africa
Color
Green
Colorless, White, gray, pink, Green
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
2.74-2.90
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, Gemstones (2009), Splintery
Cleavage
Perfect
Perfect on {100} and {001}
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Luster
Vitreous, Pearly
Silky
Pleochroism
visible
NilArthur Thomas
Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.578-1.639
1.595-1.645
Optic Character
Not Available
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Crystal System
Orthorhombic
Triclinic
Birefringence
0.037-0.039
0.028-0.038
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 Pectolite Fracture
Fracture is an important parameter when you compare Grandidierite and Pectolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grandidierite Vs Pectolite 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. Pectolite fracture is Gemstones (2009), Splintery and Uneven.
Grandidierite Vs Pectolite Luster
A primary knowledge about Grandidierite vs Pectolite 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. Pectolite, on other hand, exhibits Silky luster.