Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Blue, Violet, Colorless, Red, Green, Brown
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
Planet
Pluto
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Projective
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Deities
Hephaestus
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Not to wear with
Not Available
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Powers
Money
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Planetary
Not Available
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Talisman
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Tenacity
Not Available
Brittle
Solubility
none
Not Available
Durability
Not Available
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Specific Gravity
3.64-3.66
2.57-2.66
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, Conchoidal, Brittle
Cleavage
None, but may exhibit slight parting
Fair on {100}, poor on {001} and {010}
Chemical Composition
MgAl2O4
Mg2Al4Si5O18
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Absent
X = pale yellow
Transparency
Transparent, Translucent, Transparent to translucent
Not Available
Refractive Index
1.73
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Optic Character
Not Available
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Crystal System
Isometric
Orthorhombic
Birefringence
Not Available
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Neurological
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Cardiovascular
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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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Spinel Vs Cordierite Fracture
Fracture is an important parameter when you compare Spinel and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel 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 Spinel is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Cordierite fracture is Brittle, Conchoidal and Subconchoidal.
Spinel Vs Cordierite Luster
A primary knowledge about Spinel 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. Spinel exhibits Vitreous luster. Cordierite, on other hand, exhibits Greasy and Vitreous luster.