Nuummite Vs Fayalite
Origin
Not Available
Southern and central Africa
Color
Green
Yellow, Brown, Black, Black
Streak
Not Available
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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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
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Not to wear with
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Powers
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.37
4.392
Fracture
Conchoidal
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Perfect on 210
{010} moderate, {100} imperfect
Mohs Hardness
5.5-6
6.5-7
Chemical Composition
Not Available
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Not Available
Vitreous, Resinous
Pleochroism
Not Available
Faint
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
TransparentAnthony et al, Handbook of mineralogy (2001)
Refractive Index
1.635-1.663
1.827-1.879
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.0170-0.230
0.042-0.051
Clarity
Gemmological Tables (2004) More from other references
TransparentAnthony et al
Neurological
Not Available
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Cardiovascular
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Respiratory
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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
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Qualities Associated
Not Available
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Nuummite Vs Fayalite Fracture
Fracture is an important parameter when you compare Nuummite and Fayalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nuummite Vs Fayalite 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 Nuummite is Conchoidal. Fayalite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Nuummite Vs Fayalite Luster
A primary knowledge about Nuummite vs Fayalite 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. Fayalite, on other hand, exhibits Resinous and Vitreous luster.