Origin
Southern and central Africa
Sri Lanka, India, Brazil
Color
Colorless, Brown, Greenish, gray
Green, Brown, Brown, Colorless, Green, gray, Yellow
Streak
White
Brownish, White, Brownish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
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
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.62-2.67
3.55-3.73
Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
From the Greek, oligos and kasein, little cleavage.
none
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Not Available
None
Transparency
Gemmological Tables (2004)
Gemmological Tables (2004) More from other references
Refractive Index
1.538-1.550
1.730-1.760
Optic Character
Not Available
Not Available
Crystal System
Not Available
cubic
Birefringence
0.010
0.020
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
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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Oligoclase Vs Grossular Fracture
Fracture is an important parameter when you compare Oligoclase and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Oligoclase Vs Grossular 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 Oligoclase is Gems, Gems, Sixth Edition (2006), Sixth Edition (2006) and Uneven. Grossular fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Oligoclase Vs Grossular Luster
A primary knowledge about Oligoclase vs Grossular 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. Oligoclase exhibits Vitreous luster. Grossular, on other hand, exhibits Greasy and Vitreous luster.