Howlite Vs Poudretteite
Origin
Southern and central Africa
Canada, Southern and central Africa
Color
Blue, Colorless, White
Violet, Colorless, pink
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Not Available
Planet
Moon
Not Available
Element of Planets
Earth
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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
Not Available
Specific Gravity
2.45-2.58
2.51-2.53
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, Splintery
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
NilArthur Thomas
Colorless
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.583-1.608
1.511-1.532
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.019
0.021
Clarity
Gemmological Tables (2004) More from other references
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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Howlite Vs Poudretteite Fracture
Fracture is an important parameter when you compare Howlite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite 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 Howlite is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas. Poudretteite fracture is Conchoidal and Splintery.
Howlite Vs Poudretteite Luster
A primary knowledge about Howlite 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. Howlite exhibits Vitreous luster. Poudretteite, on other hand, exhibits Vitreous luster.