Cordierite Iolite Vs Prehnite
Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Violet, Blue
Green, Colorless, gray, Yellow, White
Streak
Not Available
Colorless
For which Rashi?
Not Available
Libra
Planet
Not Available
Venus
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive
Deities
Not Available
Freya
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
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.56-2.66
2.80-2.95
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Not Available
Distinct on [001]
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Ca2Al2Si3O12(OH)
Pleochroism
Strong trichroism: colorless to yellowish
AbsentWalter Schumann
Transparency
Transparent
Translucent
Refractive Index
1.542-1.578
1.611-1.673
Optic Character
Biaxial/+
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.008-0.012
0.021-0.033
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Cordierite Iolite Vs Prehnite Fracture
Fracture is an important parameter when you compare Cordierite Iolite and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Iolite Vs Prehnite 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. Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.
Cordierite Iolite Vs Prehnite Luster
A primary knowledge about Cordierite Iolite vs Prehnite 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. Prehnite, on other hand, exhibits Vitreous luster.