Lapis lazuli Vs Cordierite
Origin
Afghanistan
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Violet, Blue, White
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
For which Rashi?
Sagittarius
Not Available
Planet
Venus
Not Available
Element of Planets
Water
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Energy
Receptive
Not Available
Deities
Venus
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Not to wear with
Not Available
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Powers
Protection, Courage
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.50-3.00
2.57-2.66
Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Subconchoidal, Conchoidal, Brittle
Cleavage
3,6
Fair on {100}, poor on {001} and {010}
Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Mg2Al4Si5O18
Luster
Vitreous, Greasy
Greasy, Vitreous
Pleochroism
AbsentWalter Schumann
X = pale yellow
Dispersion
None
Not Available
Transparency
Opaque
Not Available
Refractive Index
1.500-1.670
Not Available
Optic Character
Not Available
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Crystal System
Trigonal
Orthorhombic
Birefringence
Not Available
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Clarity
Gemstones of the world (2001)
Not Available
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
Not Available
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Lapis lazuli Vs Cordierite Fracture
Fracture is an important parameter when you compare Lapis lazuli and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lapis lazuli 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 Lapis lazuli is ConchoidalWalter Schumann, Gemstones of the world (2001) and Uneven-Conchoidal. Cordierite fracture is Brittle, Conchoidal and Subconchoidal.
Lapis lazuli Vs Cordierite Luster
A primary knowledge about Lapis lazuli 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. Lapis lazuli exhibits Greasy and Vitreous luster. Cordierite, on other hand, exhibits Greasy and Vitreous luster.