Origin
Canada, Pakistan
Ethiopia
Color
Reddish, Greenish, White, Red, Yellow, Green, Grey, Blue, Brown, Colorless, White, gray, Reddish, orange
Yellow, White, Red, Brown, Blue
For which Rashi?
Virgo, Capricorn, Virgo, Capricorn, Virgo, Capricorn
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Element of Planets
Earth
Earth, Air, Water
Energy
Projective, Receptive
Projective, Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Protection
Astral Projection, Psychicism
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
BrittleWalter Schumann
Solubility
Dilute acid
hot salt water
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
1.98-2.25
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Distinct on {010}, imperfect {110} and {011}
None
Mohs Hardness
3.5-4
5-6.5
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2 · nH2O
Luster
Vitreous, Resinous
Vitreous, Pearly
Pleochroism
StrongArthur Thomas
None
Dispersion
Not Available
None
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.525-1.686
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.155
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
Aragonite Vs Opal Fracture
Fracture is an important parameter when you compare Aragonite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Aragonite Vs 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 Aragonite is Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal and Brittle. Opal fracture is Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references and Brittle.
Aragonite Vs Opal Luster
A primary knowledge about Aragonite vs 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. Aragonite exhibits Vitreous and Resinous luster. Opal, on other hand, exhibits Vitreous and Pearly luster.
