Ettringite Vs Gahnospinel
Origin
Southern and central Africa
Sri Lanka
Color
Colorless, Yellow, White, Colorless, White
Blue
Streak
White
Not Available
For which Rashi?
Not Available
Sagittarius, Scorpio
Planet
Not Available
Pluto
Element of Planets
Not Available
Not Available
Energy
Not Available
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Hephaestus
Not to wear with
Not Available
Not Available
Powers
Not Available
Money
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Partially soluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.77
3.65-4.55
Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {10 1 0}
None, but may exhibit slight parting
Mohs Hardness
2-2.5
7.5-8
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Pleochroism
Not Available
AbsentWalter Schumann
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Gemmological Tables (2004)
Refractive Index
1.470-1.491
1.735-1.790
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Isometric
Birefringence
0.021
Not Available
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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Ettringite Vs Gahnospinel Fracture
Fracture is an important parameter when you compare Ettringite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Ettringite Vs Gahnospinel 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. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).
Ettringite Vs Gahnospinel Luster
A primary knowledge about Ettringite vs Gahnospinel 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. Ettringite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.
