Blue John Vs Gypsum
Origin
Not Available
Mexico
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown, White, Colorless, Greenish, Brown
Streak
Not Available
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
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Flexible
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
2.20-2.40
Fracture
Not Available
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Perfect on {010}, distinct on {100}
Mohs Hardness
Not Available
2
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Luster
Not Available
Vitreous, Silky, Pearly, Waxy
Pleochroism
Not Available
None
Dispersion
Not Available
Not Available
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.432-1.436
1.521-1.531
Optic Character
Not Available
Not Available
Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.010
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
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Blue John Vs Gypsum Fracture
Fracture is an important parameter when you compare Blue John and Gypsum Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Gypsum 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. Gypsum fracture is Conchoidal, Fibrous, Gemstones (2009), Splintery and UnevenArthur Thomas.
Blue John Vs Gypsum Luster
A primary knowledge about Blue John vs Gypsum 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. Gypsum, on other hand, exhibits Pearly, Silky, Vitreous and Waxy luster.