Howlite Vs Vesuvianite
Origin
Southern and central Africa
Not Available
Color
Blue, Colorless, White
Brown, Blue, Green, Yellow, White
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Not Available
Planet
Moon
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Element of Planets
Earth
Not Available
Energy
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
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Tenacity
Not Available
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Solubility
Not Available
Vesuvianite is virtually insolouble in acids
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
3.32-3.43
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, Brittle
Cleavage
None
Poor on {110} and {100} very poor on {001}
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Luster
Vitreous
Vitreous, Resinous
Pleochroism
NilArthur Thomas
slight in colored varieties
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.583-1.608
1.703-1.752
Optic Character
Not Available
Not Available
Crystal System
monoclinic
tetragonal
Birefringence
0.019
0.004-0.006
Clarity
Gemmological Tables (2004) More from other references
Not Available
Neurological
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Cardiovascular
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Respiratory
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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
Not Available
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Qualities Associated
Not Available
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Howlite Vs Vesuvianite Fracture
Fracture is an important parameter when you compare Howlite and Vesuvianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Vesuvianite 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 UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal. Vesuvianite fracture is Conchoidal and Brittle.
Howlite Vs Vesuvianite Luster
A primary knowledge about Howlite vs Vesuvianite 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. Vesuvianite, on other hand, exhibits Vitreous and Resinous luster.
