Origin
Brazil, Southern and central Africa, Sri Lanka
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
Color
Red, gray
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
For which Rashi?
Not Available
All
Planet
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Venus
Element of Planets
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Finger
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Ring Metal
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Energy
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Projective, Receptive
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
Insoluble in acids
Not Available
Durability
Not Available
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Specific Gravity
4.20-4.30
3.05-3.21
Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Good on {110}, poor on {100}
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Adamantine
Vitreous, Greasy
Pleochroism
Weak to distinct brownish red-green-yellow
strongly trichroic
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
2.609-2.903
1.627-1.650
Optic Character
Not Available
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Crystal System
tetragonal
Orthorhombic
Birefringence
0.296
0.009-0.010
Clarity
Transparent
Transparent
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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Rutile Vs Andalusite Fracture
Fracture is an important parameter when you compare Rutile and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rutile Vs Andalusite 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 Rutile is ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Andalusite fracture is Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas.
Rutile Vs Andalusite Luster
A primary knowledge about Rutile vs Andalusite 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. Rutile exhibits Adamantine luster. Andalusite, on other hand, exhibits Greasy and Vitreous luster.