Cordierite Vs Calcite
Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Mexico
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
White, Colorless, pink, Yellow, Brown
For which Rashi?
Not Available
Cancer
Element of Planets
Not Available
Earth, Sun
Energy
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Receptive
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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Spirituality, Healing
Planetary
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Talisman
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Solubility
Not Available
Soluble
Durability
Not Available
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Specific Gravity
2.57-2.66
2.67-2.73
Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Fair on {100}, poor on {001} and {010}
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
Mg2Al4Si5O18
CaCO 3Ulrich Henn and Claudio C.
Luster
Greasy, Vitreous
Vitreous, Pearly
Pleochroism
X = pale yellow
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
Not Available
Transparent, Translucent
Refractive Index
Not Available
1.486-1.658
Optic Character
Not Available
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Crystal System
Orthorhombic
Trigonal
Birefringence
Not Available
0.154-0.174
Clarity
Not Available
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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Cordierite Vs Calcite Fracture
Fracture is an important parameter when you compare Cordierite and Calcite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Vs Calcite 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 Cordierite is Subconchoidal, Conchoidal and Brittle. Calcite fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Brittle.
Cordierite Vs Calcite Luster
A primary knowledge about Cordierite vs Calcite 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. Cordierite exhibits Greasy and Vitreous luster. Calcite, on other hand, exhibits Vitreous and Pearly luster.