Opal Vs Crocoite
Origin
Ethiopia
Australia, Southern and central Africa
Color
Yellow, White, Red, Brown, Blue
Red, Yellow, Red, orange
Streak
White
yellowish orange
For which Rashi?
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Not Available
Planet
Mercury
Not Available
Element of Planets
Earth, Air, Water
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective, Receptive
Not Available
Deities
Cupid
Not Available
Not to wear with
Not Available
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Powers
Astral Projection, Psychicism
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
5.90-6.10
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Cleavage
None
{110} Distinct, {001} Indistinct, {100} Indistinct
Mohs Hardness
5-6.5
2.5-3
Chemical Composition
SiO2 · nH2O
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Adamantine
Pleochroism
None
Distinctly trichroic
Dispersion
None
Not Available
Transparency
Transparent, Translucent, Transparent to translucent
Transparent
Refractive Index
1.37-1.52
2.31-2.66
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Birefringence
Not Available
Not Available
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Opal Vs Crocoite Fracture
Fracture is an important parameter when you compare Opal and Crocoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Opal Vs Crocoite 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 Opal is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references. Crocoite fracture is (e.g. graphite)., ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Opal Vs Crocoite Luster
A primary knowledge about Opal vs Crocoite 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. Opal exhibits Pearly and Vitreous luster. Crocoite, on other hand, exhibits Adamantine luster.