Howlite Vs Caledonite
Origin
Southern and central Africa
USA
Color
Blue, Colorless, White
Blue, Green, Blue, Green, Green
Streak
White
Blue, Greenish, White
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Not Available
Planet
Moon
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Energy
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Deities
Quan Yin
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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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Tenacity
Not Available
Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.45-2.58
5.6-5.76
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
None
[001] perfect; [100] distinct
Mohs Hardness
3-3.5
2.5-3
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Pleochroism
NilArthur Thomas
Weak
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.583-1.608
1.818-1.909
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Orthorhombic
Birefringence
0.019
0.091
Clarity
Gemmological Tables (2004) More from other references
Transparent
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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Howlite Vs Caledonite Fracture
Fracture is an important parameter when you compare Howlite and Caledonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Caledonite 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 Howlite is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas. Caledonite fracture is Handbook of mineralogy (2001), Uneven and UnevenAnthony et al.
Howlite Vs Caledonite Luster
A primary knowledge about Howlite vs Caledonite 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. Howlite exhibits Vitreous luster. Caledonite, on other hand, exhibits Vitreous luster.