Origin
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA
Russia, Columbia
Color
Red, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black
White, White, Colorless, Red, Reddish
For which Rashi?
Not Available
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Planet
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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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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.95-4.30
2.20-2.26
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
none
Perfect on {110}
Mohs Hardness
7-7.5
5-5.5
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Vitreous
Vitreous, Silky, Pearly
Pleochroism
None
NilArthur Thomas
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.770-1.820
1.478-1.493
Optic Character
Not Available
Not Available
Crystal System
cubic
Orthorhombic
Birefringence
Not Available
0.012-0.013
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Almandine Vs Natrolite Fracture
Fracture is an important parameter when you compare Almandine and Natrolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Almandine Vs Natrolite 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 Almandine is Brittle, Brittle, Brittle, Conchoidal, Conchoidal, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Natrolite fracture is Brittle, Gemstones (2009), Metallic and Uneven.
Almandine Vs Natrolite Luster
A primary knowledge about Almandine vs Natrolite 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. Almandine exhibits Greasy and Vitreous luster. Natrolite, on other hand, exhibits Pearly, Silky and Vitreous luster.