Opal Vs Goethite
Origin
Ethiopia
Australia
Color
Yellow, White, Red, Brown, Blue
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
Streak
White
Brown, Brownish, Yellow
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
Energy
Projective, Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Cupid
Not Available
Not to wear with
Not Available
Not Available
Powers
Astral Projection, Psychicism
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
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Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
4.27-4.29
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
None
Perfect {010}
Mohs Hardness
5-6.5
5-5.5
Chemical Composition
SiO2 · nH2O
FeO(OH)Arthur Thomas , Gemstones (2009)
Luster
Vitreous, Pearly
Adamantine
Pleochroism
None
VisibleArthur Thomas
Dispersion
None
Not Available
Transparency
Transparent, Translucent, Transparent to translucent
Gemstones (2009)
Refractive Index
1.37-1.52
2.26-2.398
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
Not Available
0.138
Clarity
Transparent
Gemstones (2009)
Neurological
Not Available
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Cardiovascular
Not Available
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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
Opal Vs Goethite Fracture
Fracture is an important parameter when you compare Opal and Goethite Physical Properties. It is necessary to understand the significance of these properties, before you compare Opal Vs Goethite 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 Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references and Brittle. Goethite fracture is Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces and (e.g. fractured metals)..
Opal Vs Goethite Luster
A primary knowledge about Opal vs Goethite 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 Vitreous and Pearly luster. Goethite, on other hand, exhibits Adamantine luster.
