Londonite Vs Cassiterite
Origin
Madagascar
Sri Lanka
Color
White, Colorless, Yellow
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
Streak
White
White, Brownish, Brownish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
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
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.34
6.86-7.03
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Cleavage
None
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
Not Available
6-7
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Greasy
Pleochroism
Not Available
Pleochroic haloes have been observed. Dichroic in yellow
Transparency
Transparent
Transparent, Translucent
Refractive Index
Not Available
1.990-2.105
Optic Character
Not Available
Not Available
Crystal System
Not Available
tetragonal
Birefringence
Not Available
0.096-0.098
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
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Healing
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Qualities Associated
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Londonite Vs Cassiterite Fracture
Fracture is an important parameter when you compare Londonite and Cassiterite Physical Properties. It is necessary to understand the significance of these properties, before you compare Londonite Vs Cassiterite 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 Londonite is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001). Cassiterite fracture is ConchoidalArthur Thomas, Gemstones (2009), Irregular, Subconchoidal and Uneven.
Londonite Vs Cassiterite Luster
A primary knowledge about Londonite vs Cassiterite 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. Londonite exhibits Vitreous luster. Cassiterite, on other hand, exhibits Adamantine and Greasy luster.