Blue John Vs Atacamite
Origin
Not Available
Not Available
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Green, Green, Yellow, Black
Streak
Not Available
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
Not Available
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Durability
Not Available
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Specific Gravity
3.00-3.25
3.745-3.776
Fracture
Not Available
Conchoidal, Conchoidal, Brittle
Cleavage
Not Available
Perfect on {010}, fair on {101}
Mohs Hardness
Not Available
3-3.5
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Cu2Cl(OH)3
Luster
Not Available
Adamantine, Vitreous
Pleochroism
Not Available
X = pale green; Y = yellow-green; Z = grass-green
Dispersion
Not Available
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Transparency
Transparent
Not Available
Refractive Index
1.432-1.436
1.831
Optic Character
Not Available
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Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
0.049
Clarity
Transparent
Not Available
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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Blue John Vs Atacamite Fracture
Fracture is an important parameter when you compare Blue John and Atacamite Physical Properties. It is necessary to understand the significance of these properties, before you compare Blue John Vs Atacamite 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. Atacamite fracture is Brittle, Conchoidal and Conchoidal.
Blue John Vs Atacamite Luster
A primary knowledge about Blue John vs Atacamite 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. Atacamite, on other hand, exhibits Adamantine and Vitreous luster.