Caledonite Vs Poudretteite
Origin
USA
Canada, Southern and central Africa
Color
Blue, Green, Blue, Green, Green
Violet, Colorless, pink
Streak
Blue, Greenish, White
White
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Solubility
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Durability
Not Available
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Specific Gravity
5.6-5.76
2.51-2.53
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Conchoidal, Splintery
Cleavage
[001] perfect; [100] distinct
None
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Weak
Colorless
Dispersion
Not Available
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Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.818-1.909
1.511-1.532
Optic Character
Not Available
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Crystal System
Orthorhombic
Hexagonal
Birefringence
0.091
0.021
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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
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Caledonite Vs Poudretteite Fracture
Fracture is an important parameter when you compare Caledonite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Caledonite Vs Poudretteite 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 Caledonite is Handbook of mineralogy (2001), Uneven and UnevenAnthony et al. Poudretteite fracture is Conchoidal and Splintery.
Caledonite Vs Poudretteite Luster
A primary knowledge about Caledonite vs Poudretteite 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. Caledonite exhibits Vitreous luster. Poudretteite, on other hand, exhibits Vitreous luster.