Black Opal Vs Variscite
Origin
Australia
Australia, Spain, Brazil, Germany, Australia, Spain, Brazil, Germany, Australia, Spain, Brazil
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Green, Blue, Colorless
Streak
Not Available
White
For which Rashi?
Not Available
Virgo
Planet
Not Available
Not Available
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Projective
Deities
Not Available
Past Life Recall
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
2.42-2.58
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Not Available
[010] perfect
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
AlPO4 · 2(H2O)
Luster
Not Available
Vitreous, Waxy
Pleochroism
AbsentWalter Schumann
MissingWalter Schumann
Dispersion
None
Not Available
Transparency
Transparent, Translucent
Translucent, Opaque . May be translucent when backlit on the edges.
Refractive Index
1.370-1.470
1.560-1.594
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
0.031
Clarity
Transparent
Translucent
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
Black Opal Vs Variscite Fracture
Fracture is an important parameter when you compare Black Opal and Variscite Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Variscite 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 Black Opal is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Variscite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Splintery.
Black Opal Vs Variscite Luster
A primary knowledge about Black Opal vs Variscite 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. Variscite, on other hand, exhibits Vitreous and Waxy luster.