Origin
Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Brazil, USA, Sri Lanka, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown
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Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Red, Violet, Blue, Colorless, Yellow, White, Red, Blue, Colorless, Yellow, White, Red
For which Rashi?
All
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Planet
Venus
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Element of Planets
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Finger
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Ring Metal
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Energy
Projective, Receptive
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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
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Soluble
Durability
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Specific Gravity
3.05-3.21
1.6
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Violet, Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
Good on {110}, poor on {100}
None
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
KMgCl3•6(H2O)
Luster
Vitreous, Greasy
Greasy
Pleochroism
strongly trichroic
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Transparency
Transparent, Translucent
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Refractive Index
1.627-1.650
1.467
Optic Character
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009-0.010
0.0270
Clarity
Transparent
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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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Andalusite Vs Carnallite Fracture
Fracture is an important parameter when you compare Andalusite and Carnallite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Carnallite 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 Andalusite is Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas. Carnallite fracture is Brittle, Brittle, Conchoidal, Conchoidal and Violet.
Andalusite Vs Carnallite Luster
A primary knowledge about Andalusite vs Carnallite 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. Andalusite exhibits Greasy and Vitreous luster. Carnallite, on other hand, exhibits Greasy luster.