Achroite Vs Cordierite
Origin
Afghanistan, Sri Lanka
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Colorless, Blue
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
Streak
Not Available
White
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
Not Available
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
2.90-3.40
2.57-2.66
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Subconchoidal, Conchoidal, Brittle
Cleavage
Not Available
Fair on {100}, poor on {001} and {010}
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
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.
Mg2Al4Si5O18
Luster
Not Available
Greasy, Vitreous
Pleochroism
Not Available
X = pale yellow
Transparency
Transparent, Translucent
Not Available
Refractive Index
1.614-1.666
Not Available
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.014-0.040
Not Available
Clarity
Transparent
Not Available
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
Achroite Vs Cordierite Fracture
Fracture is an important parameter when you compare Achroite and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Achroite 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 Achroite is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Cordierite fracture is Brittle, Conchoidal and Subconchoidal.
Achroite Vs Cordierite Luster
A primary knowledge about Achroite 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. Cordierite, on other hand, exhibits Greasy and Vitreous luster.