Opal Vs Malachite
Origin
Ethiopia
Southern and central Africa, green
Color
Yellow, White, Red, Brown, Blue
Green
For which Rashi?
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
Capricorn, Scorpio, Capricorn, Scorpio, Capricorn, Scorpio
Element of Planets
Earth, Air, Water
Earth
Energy
Projective, Receptive
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Astral Projection, Psychicism
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.25-4.10
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Cleavage
None
Perfect on { 2 01} fair on {010}
Mohs Hardness
5-6.5
3.5-4
Chemical Composition
SiO2 · nH2O
Cu2CO3(OH)2
Luster
Vitreous, Pearly
Adamantine, Vitreous, Silky, Fibrous
Pleochroism
None
Not Available
Transparency
Transparent, Translucent, Transparent to translucent
Opaque
Refractive Index
1.37-1.52
1.655-1.909
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
Not Available
0.254
Clarity
Transparent
Gemmological Tables (2004) More from other references
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
Opal Vs Malachite Fracture
Fracture is an important parameter when you compare Opal and Malachite Physical Properties. It is necessary to understand the significance of these properties, before you compare Opal Vs Malachite 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. Malachite fracture is Conchoidal, Conchoidal, Gemstones (2009) and Uneven.
Opal Vs Malachite Luster
A primary knowledge about Opal vs Malachite 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. Malachite, on other hand, exhibits Adamantine, Vitreous, Silky and Fibrous luster.
