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
Australia, Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Violet, pink
Streak
White
White, Violet, Blue
For which Rashi?
All
Not Available
Planet
Venus
Not Available
Element of Planets
Not Available
Not Available
Energy
Projective, Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.05-3.21
2.11-2.20
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Good on {110}, poor on {100}
Perfect on {0001}
Mohs Hardness
7.5
Not Available
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Waxy, Resinous
Pleochroism
strongly trichroic
Weak
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.627-1.650
1.516-1.544
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.009-0.010
0.026
Clarity
Transparent
Translucent
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 Stichtite Fracture
Fracture is an important parameter when you compare Andalusite and Stichtite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Stichtite 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). Stichtite fracture is UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009) and Uneven.
Andalusite Vs Stichtite Luster
A primary knowledge about Andalusite vs Stichtite 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. Stichtite, on other hand, exhibits Waxy and Resinous luster.
