Powellite Vs Spessartine
Origin
India
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
Color
Yellow, Greenish, Blue, Brown, Green, gray
Red, Reddish, orange, Brown
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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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
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Solubility
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Durability
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Specific Gravity
4.23
4.12-4.18
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
ConchoidalArthur Thomas, Conchoidal, Brittle
Cleavage
{111} Distinct
{???} Distinct
Mohs Hardness
3.5-4
7-7.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Greasy, Subadamantine
Vitreous
Pleochroism
In deeply colored specimens: blue greenAnthony et al
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.974-1.984
1.789-1.820
Optic Character
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Crystal System
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Isometric
Birefringence
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0.027
Clarity
Transparent
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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Powellite Vs Spessartine Fracture
Fracture is an important parameter when you compare Powellite and Spessartine Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Spessartine 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al. Spessartine fracture is Brittle, Conchoidal and ConchoidalArthur Thomas.
Powellite Vs Spessartine Luster
A primary knowledge about Powellite vs Spessartine 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. Powellite exhibits Greasy and Subadamantine luster. Spessartine, on other hand, exhibits Vitreous luster.