Londonite Vs Grossular
Origin
Madagascar
Sri Lanka, India, Brazil
Color
White, Colorless, Yellow
Green, Brown, Brown, Colorless, Green, gray, Yellow
Streak
White
Brownish, White, Brownish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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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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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.34
3.55-3.73
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Mohs Hardness
Not Available
7-7.5
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Not Available
None
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.730-1.760
Optic Character
Not Available
Not Available
Crystal System
Not Available
cubic
Birefringence
Not Available
0.020
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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Londonite Vs Grossular Fracture
Fracture is an important parameter when you compare Londonite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Londonite Vs Grossular 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). Grossular fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Londonite Vs Grossular Luster
A primary knowledge about Londonite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.