Cassiterite Vs Poldervaartite
Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
Colorless, White
Streak
White, Brownish, Brownish, White
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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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
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.86-7.03
2.91
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Handbook of mineralogy (2001)
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
None
Mohs Hardness
6-7
Not Available
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Weak: colorless light gray bluish grayAnthony et al
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.990-2.105
1.634-1.656
Optic Character
Not Available
Not Available
Crystal System
tetragonal
Not Available
Birefringence
0.096-0.098
Not Available
Clarity
Transparent
Transparent
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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Cassiterite Vs Poldervaartite Fracture
Fracture is an important parameter when you compare Cassiterite and Poldervaartite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite Vs Poldervaartite 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 Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009) and Irregular. Poldervaartite fracture is Handbook of mineralogy (2001).
Cassiterite Vs Poldervaartite Luster
A primary knowledge about Cassiterite vs Poldervaartite 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. Poldervaartite, on other hand, exhibits Vitreous luster.
