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
For which Rashi?
All
Taurus, Leo, Taurus, Leo, Taurus, Leo
Element of Planets
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Finger
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Ring Metal
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Energy
Projective, Receptive
Projective
Deities
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Isis, Bragi
Not to wear with
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Powers
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Protection, Healing, Courage
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
2.58-2.64
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Good on {110}, poor on {100}
Absent
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
SiO2
Luster
Vitreous, Greasy
Vitreous
Pleochroism
strongly trichroic
AbsentWalter Schumann
Transparency
Transparent, Translucent
Translucent, Transparent to nearly opaque
Refractive Index
1.627-1.650
1.535-1.539
Optic Character
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Crystal System
Orthorhombic
Trigonal
Birefringence
0.009-0.010
0.003-0.009
Clarity
Transparent
Translucent
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 Carnelian Fracture
Fracture is an important parameter when you compare Andalusite and Carnelian Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Carnelian 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. Carnelian fracture is Conchoidal, Gemstones of the world (2001), Splintery, Uneven and UnevenWalter Schumann.
Andalusite Vs Carnelian Luster
A primary knowledge about Andalusite vs Carnelian 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. Carnelian, on other hand, exhibits Vitreous luster.