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
Green, Brown, Red, pink, Red
For which Rashi?
All
Taurus, Sagittarius, Taurus, Sagittarius, Taurus, Sagittarius
Element of Planets
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Water
Finger
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Ring Metal
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Energy
Projective, Receptive
Receptive
Deities
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Not to wear with
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Powers
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Protection
Planetary
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Talisman
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Tenacity
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Solubility
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Durability
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Specific Gravity
3.05-3.21
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Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Hackly Jagged, torn surfaces, (e.g. fractured metals)., torn surfaces, (e.g. fractured metals).
Cleavage
Good on {110}, poor on {100}
None
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Cu
Luster
Vitreous, Greasy
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Pleochroism
strongly trichroic
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Transparency
Transparent, Translucent
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Refractive Index
1.627-1.650
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Optic Character
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Crystal System
Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
Birefringence
0.009-0.010
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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 Copper Fracture
Fracture is an important parameter when you compare Andalusite and Copper Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Copper 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. Copper fracture is (e.g. fractured metals)., (e.g. fractured metals)., Hackly Jagged, torn surfaces and torn surfaces.
Andalusite Vs Copper Luster
A primary knowledge about Andalusite vs Copper 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.