Zoisite Vs Cordierite Iolite
Origin
Pakistan, Tanzania
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
Color
Brown, gray, Green, Blue, rose, Red
Violet, Blue
Streak
White, Colorless
Not Available
For which Rashi?
Not Available
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Planet
Not Available
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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
Not Available
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Deities
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Not to wear with
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.20-3.50
2.56-2.66
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Perfect {010} imperfect {100}
Not Available
Chemical Composition
Ca2Al3(SiO4)3(OH)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Strong trichroism: colorless to yellowish
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent
Refractive Index
1.685-1.707
1.542-1.578
Optic Character
Not Available
Biaxial/+
Crystal System
Orthorhombic
Not Available
Birefringence
0.006-0.018
0.008-0.012
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
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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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Zoisite Vs Cordierite Iolite Fracture
Fracture is an important parameter when you compare Zoisite and Cordierite Iolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite Vs Cordierite Iolite 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 Zoisite is Conchoidal, ConchoidalArthur Thomas, Even, Gemstones (2009) and Uneven. Cordierite Iolite fracture is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven.
Zoisite Vs Cordierite Iolite Luster
A primary knowledge about Zoisite vs Cordierite Iolite 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. Zoisite exhibits Vitreous luster. Cordierite Iolite, on other hand, exhibits Vitreous luster.