Cassiterite Vs Precious Opal
Origin
Sri Lanka
Australia
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
Yellow, Green, Blue
Streak
White, Brownish, Brownish, White
Not Available
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
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.86-7.03
1.98-2.25
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Not Available
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Luster
Adamantine, Greasy
Not Available
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
AbsentWalter Schumann
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.990-2.105
1.370-1.470
Optic Character
Not Available
Not Available
Crystal System
tetragonal
Not Available
Birefringence
0.096-0.098
Not Available
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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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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Cassiterite Vs Precious Opal Fracture
Fracture is an important parameter when you compare Cassiterite and Precious Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Precious Opal 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 Cassiterite is ConchoidalArthur Thomas, Gemstones (2009), Irregular, Subconchoidal and Uneven. Precious Opal fracture is Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.
Cassiterite Vs Precious Opal Luster
A primary knowledge about Cassiterite vs Precious Opal 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. Cassiterite exhibits Adamantine and Greasy luster.