Covellite Vs Mottramite
Origin
Mexico
Not Available
Color
Blue, Blue, Black
Brown, Green, Yellow
Streak
Grey, Black, gray
Green, Brownish
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
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Deities
Not Available
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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
Flexible
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
5.9
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Sub-Conchoidal, Brittle, Metallic
Cleavage
Perfect on {0001}
None observed
Mohs Hardness
Not Available
3
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Not Available
Pleochroism
Marked
Visible X=Y= canary yellow to greenish yellow
Dispersion
Not Available
Not Available
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Not Available
Refractive Index
1.45-2.62
2.170
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
Not Available
0.150
Clarity
OpaqueAnthony et al
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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Covellite Vs Mottramite Fracture
Fracture is an important parameter when you compare Covellite and Mottramite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite 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 Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Mottramite fracture is Brittle, Metallic and Sub-Conchoidal.
Covellite Vs Mottramite Luster
A primary knowledge about Covellite 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. Covellite exhibits Resinous luster. Mottramite, on other hand, exhibits Greasy luster.