Petalite Vs Agate Opal
Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Not Available, Southern and central Africa
Color
Colorless, gray, Yellow, White
Not Available
Streak
Colorless
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
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
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.40
1.98-2.50
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, Gemstones of the world (2001)
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Not Available
Mohs Hardness
6-6.5
5.5-6.5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Luster
Vitreous, Pearly
Not Available
Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.502-1.523
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Not Available
Birefringence
0.012-0.016
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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
Petalite Vs Agate Opal Fracture
Fracture is an important parameter when you compare Petalite and Agate Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Agate 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 Petalite is Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle and Conchoidal. Agate Opal fracture is Conchoidal and Gemstones of the world (2001).
Petalite Vs Agate Opal Luster
A primary knowledge about Petalite vs Agate 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. Petalite exhibits Vitreous and Pearly luster.