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Covellite
Covellite

Opal
Opal



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Covellite
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Opal

Covellite Vs Opal

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1 Astrology
1.1 Origin
Mexico
Ethiopia
1.2 Color
Blue, Blue, Black
Yellow, White, Red, Brown, Blue
1.3 Streak
Grey, Black, gray
White
1.4 For which Rashi?
Not Available
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
1.5 Planet
Not Available
Mercury
1.6 Element of Planets
Not Available
Earth, Air, Water
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Projective, Receptive
1.9 Deities
Not Available
Cupid
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Astral Projection, Psychicism
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Flexible
BrittleWalter Schumann
2.2 Solubility
Not Available
hot salt water
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
4.6-4.76
1.98-2.25
2.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
2.6 Cleavage
Perfect on {0001}
None
2.7 Mohs Hardness
Not Available
5-6.5
2.8 Chemical Composition
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references
SiO2 · nH2O
3 Optical Properties
3.1 Luster
Resinous
Vitreous, Pearly
3.2 Pleochroism
Marked
None
3.3 Dispersion
Albite
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite
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3.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
1.45-2.62
1.37-1.52
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Hexagonal
Trigonal
3.8 Birefringence
Not Available
Not Available
3.9 Clarity
OpaqueAnthony et al
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available

Covellite Vs Opal Fracture

Fracture is an important parameter when you compare Covellite and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite 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 Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.

Covellite Vs Opal Luster

A primary knowledge about Covellite 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. Covellite exhibits Resinous luster. Opal, on other hand, exhibits Pearly and Vitreous luster.

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