Howlite Vs Mottramite
Origin
Southern and central Africa
Not Available
Color
Blue, Colorless, White
Brown, Green, Yellow
Streak
White
Green, Brownish
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
Not Available
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Deities
Quan Yin
Not Available
Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
5.9
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sub-Conchoidal, Brittle, Metallic
Cleavage
None
None observed
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Pleochroism
NilArthur Thomas
Visible X=Y= canary yellow to greenish yellow
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.583-1.608
2.170
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Orthorhombic
Birefringence
0.019
0.150
Clarity
Gemmological Tables (2004) More from other references
Not Available
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
Not Available
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Qualities Associated
Not Available
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Howlite Vs Mottramite Fracture
Fracture is an important parameter when you compare Howlite and Mottramite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Mottramite 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. Mottramite fracture is Brittle, Metallic and Sub-Conchoidal.
Howlite Vs Mottramite Luster
A primary knowledge about Howlite vs Mottramite 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. Mottramite, on other hand, exhibits Greasy luster.