Forsterite Vs Cordierite
Origin
Southern and central Africa
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Colorless, Green, Yellow, White
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
3.23-3.26
2.57-2.66
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Subconchoidal, Conchoidal, Brittle
Cleavage
Perfect on {010} imperfect on {100}
Fair on {100}, poor on {001} and {010}
Mohs Hardness
6.5-7
7-7.5
Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg2Al4Si5O18
Luster
Vitreous
Greasy, Vitreous
Pleochroism
colorless.
X = pale yellow
Dispersion
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Transparency
Transparent
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Refractive Index
1.635-1.671
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Optic Character
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.033-0.042
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Clarity
Transparent
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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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Forsterite Vs Cordierite Fracture
Fracture is an important parameter when you compare Forsterite and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Forsterite Vs Cordierite 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 Forsterite is Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Brittle. Cordierite fracture is Subconchoidal, Conchoidal and Brittle.
Forsterite Vs Cordierite Luster
A primary knowledge about Forsterite vs Cordierite 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. Forsterite exhibits Vitreous luster. Cordierite, on other hand, exhibits Greasy and Vitreous luster.