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
Brazil, USA, Switzerland, Kenya, Mozambique, Russia, Nepal, India, Burma
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Blue, Yellow, Colorless, White, gray, Green, Black
For which Rashi?
All
Aries, Libra, Taurus, Aries, Libra, Taurus, Aries, Libra, Taurus
Element of Planets
Not Available
Water
Energy
Projective, Receptive
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Not Available
Endurance, Meditation, Love
Not to wear with
Not Available
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Powers
Not Available
Love
Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.05-3.21
3.53-3.65
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Splintery, Brittle, Metallic
Cleavage
Good on {110}, poor on {100}
[100] perfect [010] imperfect with 79° angle between
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Not Available
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
strongly trichroic
Trichroic
Transparency
Transparent, Translucent
Not Available
Refractive Index
1.627-1.650
1.71-1.74
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Triclinic
Birefringence
0.009-0.010
Not Available
Clarity
Transparent
Color grading system
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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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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Andalusite Vs Kyanite Fracture
Fracture is an important parameter when you compare Andalusite and Kyanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Kyanite 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 Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas and Gemstones (2009). Kyanite fracture is Splintery, Brittle and Metallic.
Andalusite Vs Kyanite Luster
A primary knowledge about Andalusite vs Kyanite 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 Vitreous and Greasy luster. Kyanite, on other hand, exhibits Vitreous and Pearly luster.
