Onyx Vs Sillimanite
Origin
Not Available
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
White
Blue, Green, Brownish, Greenish, Colorless, gray
Streak
Not Available
White
For which Rashi?
Capricorn
Not Available
Planet
Saturn
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Not Available
Deities
Mars
Not Available
Not to wear with
Not Available
Not Available
Powers
Protection
Not Available
Planetary
Not Available
Not Available
Talisman
Capricorn
Not Available
Tenacity
Not Available
Tough
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.20-3.26
Fracture
Not Available
Splintery
Cleavage
Indiscernible
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
SiO2
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Not Available
Colourless to pale brown to yellow
Dispersion
Not Available
Not Available
Transparency
Translucent, Opaque, Translucent to opaque
Transparent, Translucent
Refractive Index
1.530-1.543
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
Not Available
0.020-0.022
Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
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
Onyx Vs Sillimanite Fracture
Fracture is an important parameter when you compare Onyx and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Onyx Vs Sillimanite 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. Sillimanite fracture is Splintery.
Onyx Vs Sillimanite Luster
A primary knowledge about Onyx vs Sillimanite 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. Onyx exhibits Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.