Blue John Vs Pargasite
Origin
Not Available
Southern and central Africa, Vietnam
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Green, Black, Brown
Streak
Not Available
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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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
Not Available
Not Available
Powers
Not Available
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Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
3.04-3.26
Fracture
Not Available
Splintery, Brittle, Uneven
Cleavage
Not Available
{110} perfect
Mohs Hardness
Not Available
5-6
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Not Available
Vitreous
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent
Transparent
Refractive Index
1.432-1.436
1.613-1.663
Optic Character
Not Available
Not Available
Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.020
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
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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
Not Available
Blue John Vs Pargasite Fracture
Fracture is an important parameter when you compare Blue John and Pargasite Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Pargasite 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. Pargasite fracture is Brittle, Splintery and Uneven.
Blue John Vs Pargasite Luster
A primary knowledge about Blue John vs Pargasite 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. Pargasite, on other hand, exhibits Vitreous luster.