Foitite Vs Lazurite
Origin
Not Available, Southern and central Africa
Afghanistan, Southern and central Africa
Color
Violet, Black
Blue, Greenish, Violet
Streak
gray, White, gray, White
Blue, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.17
2.75
Fracture
Handbook of mineralogy (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
None
Imperfect on {110}
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Pleochroism
Strong: pale lavender dark blueAnthony et al
Not Available
Dispersion
Not Available
Not Available
Transparency
TranslucentAnthony et al, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.500
Optic Character
Not Available
Not Available
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Isometric
Birefringence
Not Available
Not Available
Clarity
TranslucentAnthony et al
Gemmological Tables (2004) More from other references
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
Not Available
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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Foitite Vs Lazurite Fracture
Fracture is an important parameter when you compare Foitite and Lazurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Foitite Vs Lazurite 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 Foitite is Handbook of mineralogy (2001). Lazurite fracture is Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal and Brittle.
Foitite Vs Lazurite Luster
A primary knowledge about Foitite vs Lazurite 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. Foitite exhibits Vitreous luster. Lazurite, on other hand, exhibits Vitreous luster.
