Powellite Vs Fire Opal
Color
Yellow, Greenish, Blue, Brown, Green, gray
Red
Streak
Yellow
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
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
4.23
1.97-2.22
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
{111} Distinct
Not Available
Mohs Hardness
3.5-4
6-6.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Luster
Greasy, Subadamantine
Not Available
Pleochroism
In deeply colored specimens: blue greenAnthony et al
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.974-1.984
1.370-1.470
Optic Character
Not Available
Not Available
Crystal System
Not Available
Amorphous
Birefringence
Not Available
Not Available
Clarity
Transparent
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
Powellite Vs Fire Opal Fracture
Fracture is an important parameter when you compare Powellite and Fire Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Fire Opal 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al. Fire Opal fracture is Conchoidal, Conchoidal and Gemstones of the world (2001).
Powellite Vs Fire Opal Luster
A primary knowledge about Powellite vs Fire Opal 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. Powellite exhibits Greasy and Subadamantine luster.