Hurlbutite Vs Howlite
Origin
USA
Southern and central Africa
Color
Colorless, Greenish, White, Yellow
Blue, Colorless, White
For which Rashi?
Not Available
Gemini, Virgo
Planet
Not Available
Moon
Element of Planets
Not Available
Earth
Energy
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Finger
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Ring Metal
Not Available
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Deities
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Quan Yin
Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.90
2.45-2.58
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Chemical Composition
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Not Available
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.595-1.604
1.583-1.608
Optic Character
Not Available
Not Available
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
monoclinic
Birefringence
0.009
0.019
Clarity
Transparent
Gemmological Tables (2004) More from other references
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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Hurlbutite Vs Howlite Fracture
Fracture is an important parameter when you compare Hurlbutite and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hurlbutite Vs Howlite 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 Hurlbutite is ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle and Conchoidal. Howlite fracture is UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal.
Hurlbutite Vs Howlite Luster
A primary knowledge about Hurlbutite vs Howlite 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. Hurlbutite exhibits Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.