Origin
USA, Mexico
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Green, Brown, Greenish, Brown, Green, Green, Black
Colorless, Yellow, pink, Red
Streak
Greenish, gray, Greenish, gray
White
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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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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Brittle
Solubility
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Durability
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Specific Gravity
3.19-3.56
2.90-2.98
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
{110} Perfect, {010} Indistinct
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
5.5-6
7.5-8
Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Resinous
Vitreous
Pleochroism
Pale green
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.671-1.774
1.650-1.695
Optic Character
Not Available
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Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Trigonal
Birefringence
Not Available
0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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Augite Vs Phenakite Fracture
Fracture is an important parameter when you compare Augite and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Augite Vs Phenakite 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 Augite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Phenakite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Augite Vs Phenakite Luster
A primary knowledge about Augite vs Phenakite 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. Augite exhibits Resinous and Vitreous luster. Phenakite, on other hand, exhibits Vitreous luster.