Origin
Not Available
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
White, Colorless, Blue, Red, Green, Yellow, Violet
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Streak
Not Available
White
For which Rashi?
Libra
All
Element of Planets
Earth
Not Available
Finger
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Ring Metal
Not Available
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Energy
Projective
Projective, Receptive
Deities
Venus, Mars
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Not to wear with
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Powers
Love, Courage
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Planetary
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Talisman
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Tenacity
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Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
3.05-3.21
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
3,2
Good on {110}, poor on {100}
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Not Available
strongly trichroic
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.614-1.666
1.627-1.650
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.014-0.040
0.009-0.010
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
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Psychology
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Healing
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Qualities Associated
Not Available
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Chrome Tourmaline Vs Andalusite Fracture
Fracture is an important parameter when you compare Chrome Tourmaline and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Chrome Tourmaline 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 Chrome Tourmaline is ConchoidalArthur Thomas and Gemstones (2009). Andalusite fracture is Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas.
Chrome Tourmaline Vs Andalusite Luster
A primary knowledge about Chrome Tourmaline 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. Chrome Tourmaline exhibits Vitreous luster. Andalusite, on other hand, exhibits Greasy and Vitreous luster.