Schorl Vs Rock Crystal
Origin
India, Southern and central Africa, Madagascar
Sri Lanka
Color
Black, Brownish, Greenish
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Brown
Not Available
For which Rashi?
Not Available
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Planet
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.18-3.22
2.65
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
{1011} Indistinct
Not Available
Mohs Hardness
Not Available
7
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SiO 2Walter Schumann , Gemstones of the world (2001)
Luster
Vitreous
Not Available
Pleochroism
Very strong: yellow-brown pale yellow
AbsentWalter Schumann
Transparency
Transparent, Translucent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Refractive Index
1.635-1.672
1.544-1.553
Optic Character
Not Available
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Crystal System
Not Available
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Birefringence
0.025
0.009
Clarity
Transparent
TransparentWalter Schumann
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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Schorl Vs Rock Crystal Fracture
Fracture is an important parameter when you compare Schorl and Rock Crystal Physical Properties. It is necessary to understand the significance of these properties, before you compare Schorl Vs Rock Crystal 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 Schorl is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Rock Crystal fracture is ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) and Gemstones of the world (2001).
Schorl Vs Rock Crystal Luster
A primary knowledge about Schorl vs Rock Crystal 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. Schorl exhibits Vitreous luster.