Caledonite Vs Prehnite
Origin
USA
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Blue, Green, Blue, Green, Green
Green, Colorless, gray, Yellow, White
Streak
Blue, Greenish, White
Colorless
For which Rashi?
Not Available
Libra
Planet
Not Available
Venus
Element of Planets
Not Available
Earth
Finger
Not Available
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Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive
Deities
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Freya
Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.6-5.76
2.80-2.95
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
[001] perfect; [100] distinct
Distinct on [001]
Mohs Hardness
2.5-3
6-6.5
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Ca2Al2Si3O12(OH)
Pleochroism
Weak
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Transparent
Translucent
Refractive Index
1.818-1.909
1.611-1.673
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.091
0.021-0.033
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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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
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Qualities Associated
Not Available
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Caledonite Vs Prehnite Fracture
Fracture is an important parameter when you compare Caledonite and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Caledonite 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 Caledonite is Handbook of mineralogy (2001), Uneven and UnevenAnthony et al. Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.
Caledonite Vs Prehnite Luster
A primary knowledge about Caledonite 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. Caledonite exhibits Vitreous luster. Prehnite, on other hand, exhibits Vitreous luster.