Origin
Southern and central Africa
  
Ethiopia
  
Color
Yellow, Red, Brown
  
Yellow, White, Red, Brown, Blue
  
Streak
Not Available
  
White
  
For which Rashi?
Pisces, Cancer, Pisces, Cancer
  
Cancer, Libra, Scorpio, Cancer, Libra, Scorpio, Cancer, Libra, Scorpio
  
Planet
Moon, Neptune
  
Mercury
  
Element of Planets
Water
  
Earth, Air, Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Projective, Receptive
  
Deities
Goddess
  
Cupid
  
Not to wear with
Not Available
  
Not Available
  
Powers
Wealth
  
Astral Projection, Psychicism
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
BrittleWalter Schumann
  
Solubility
Not Available
  
hot salt water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65-2.87
  
1.98-2.25
  
Fracture
Not Available
  
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
  
Cleavage
Not Available
  
None
  
Mohs Hardness
2.5-4.5
  
5-6.5
  
Chemical Composition
Not Available
  
SiO2 · nH2O
  
Luster
Not Available
  
Vitreous, Pearly
  
Pleochroism
Not Available
  
None
  
Dispersion
Not Available
  
None
  
Transparency
Gemmological Tables (2004)
  
Transparent, Translucent, Transparent to translucent
  
Refractive Index
1.53-1.69
  
1.37-1.52
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Trigonal
  
Birefringence
0.16
  
Not Available
  
Clarity
Gemmological Tables (2004)
  
Transparent
  
Physical
  
  
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
  
Mother of Pearl Vs Opal Fracture
Fracture is an important parameter when you compare Mother of Pearl and Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Mother of Pearl 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. Opal fracture is Brittle, Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references.
Mother of Pearl Vs Opal Luster
A primary knowledge about Mother of Pearl 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. Opal, on other hand, exhibits Pearly and Vitreous luster.