Gahnite Vs Onyx
Origin
Australia
Not Available
Color
Blue, Green, Greenish, Black
White
Streak
Grey, gray
Not Available
For which Rashi?
Not Available
Capricorn
Planet
Not Available
Saturn
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
Mars
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Capricorn
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
2.55-2.70
Fracture
Conchoidal, Uneven
Not Available
Cleavage
Indistinct parting on [111]
Indiscernible
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Translucent, Opaque, Translucent to opaque
Refractive Index
1.790-1.818
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
cubic
Trigonal
Birefringence
Not Available
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueHerve Nicolas Lazzarelli
Neurological
Not Available
Not Available
Cardiovascular
Not Available
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Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Gahnite Vs Onyx Fracture
Fracture is an important parameter when you compare Gahnite and Onyx Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Onyx 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 Gahnite is Conchoidal and Uneven.
Gahnite Vs Onyx Luster
A primary knowledge about Gahnite vs Onyx 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. Gahnite exhibits Vitreous luster. Onyx, on other hand, exhibits Vitreous luster.
