Cordierite Iolite Vs Rubellite
Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Violet, Blue
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Not Available
Not Available
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
Not Available
Powers
Not Available
Not Available
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
2.56-2.66
3.01-3.06
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Not Available
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Vitreous
Not Available
Pleochroism
Strong trichroism: colorless to yellowish
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.542-1.578
1.614-1.666
Optic Character
Biaxial/+
Not Available
Crystal System
Not Available
Not Available
Birefringence
0.008-0.012
0.014-0.040
Clarity
Transparent
Transparent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
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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Cordierite Iolite Vs Rubellite Fracture
Fracture is an important parameter when you compare Cordierite Iolite and Rubellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Iolite Vs Rubellite 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 Iolite is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Rubellite fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Cordierite Iolite Vs Rubellite Luster
A primary knowledge about Cordierite Iolite vs Rubellite 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 Iolite exhibits Vitreous luster.