Calcite Vs Opal
Color
White, Colorless, White, pink, Yellow, Brown
Yellow, White, Red, Brown, Blue
For which Rashi?
Cancer
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Element of Planets
Earth, Sun
Earth, Air, Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Projective, Receptive
Deities
Not Available
Cupid
Not to wear with
Not Available
Not Available
Powers
Spirituality, Healing
Astral Projection, Psychicism
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
BrittleWalter Schumann
Solubility
Soluble
hot salt water
Durability
Not Available
Not Available
Specific Gravity
2.67-2.73
1.98-2.25
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
None
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
SiO2 · nH2O
Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
NilArthur Thomas
None
Dispersion
Not Available
None
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.486-1.658
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.154-0.174
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
Calcite Vs Opal Fracture
Fracture is an important parameter when you compare Calcite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Calcite 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 Calcite is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.
Calcite Vs Opal Luster
A primary knowledge about Calcite 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. Calcite exhibits Pearly and Vitreous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.