Onyx Vs Pollucite
Origin
Not Available
Afghanistan, Southern and central Africa
Color
White
Grey, White, Colorless, gray, Pale pink, Blue
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
Brittle
Solubility
Not Available
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.86-2.94
Fracture
Not Available
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Indiscernible
None observed
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
SiO2
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Not Available
Not Available
Transparency
Translucent, Opaque, Translucent to opaque
Transparent, Translucent
Refractive Index
1.530-1.543
1.517-1.525
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Isometric
Birefringence
Not Available
Not Available
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 Pollucite Fracture
Fracture is an important parameter when you compare Onyx and Pollucite Physical Properties. It is necessary to understand the significance of these properties, before you compare Onyx Vs Pollucite 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. Pollucite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Onyx Vs Pollucite Luster
A primary knowledge about Onyx vs Pollucite 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. Pollucite, on other hand, exhibits Greasy and Vitreous luster.