Lazurite Vs Williamsite
Origin
Afghanistan, Southern and central Africa
Southern and central Africa
Color
Blue, Greenish, Violet
Green
Streak
Blue, White
Not Available
For which Rashi?
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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
Brittle
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Solubility
Soluble
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Durability
Not Available
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Specific Gravity
2.75
2.51-2.63
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
Cleavage
Imperfect on {110}
Not Available
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Waxy, Silky, Resinous, Greasy
Pleochroism
Not Available
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Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Refractive Index
1.500
1.530-1.575
Optic Character
Not Available
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Crystal System
Isometric
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Birefringence
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Clarity
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli
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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Lazurite Vs Williamsite Fracture
Fracture is an important parameter when you compare Lazurite and Williamsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lazurite Vs Williamsite 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 Lazurite is Brittle, Conchoidal, Gemstones (2009), Uneven and UnevenArthur Thomas. Williamsite fracture is Conchoidal, Conchoidal and Handbook of mineralogy (2001).
Lazurite Vs Williamsite Luster
A primary knowledge about Lazurite vs Williamsite 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. Lazurite exhibits Vitreous luster. Williamsite, on other hand, exhibits Greasy, Resinous, Silky and Waxy luster.