Origin
Australia
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Streak
Not Available
Not Available
For which Rashi?
Not Available
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra
Planet
Not Available
Saturn
Element of Planets
Not Available
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive
Deities
Not Available
Apollo
Not to wear with
Not Available
Not Available
Powers
Not Available
Psychic Power, Prosperity
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
3.95-4.03
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
None, but may exhibit parting
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Al 2 O 3
Luster
Not Available
Vitreous, Adamantine, Vitreous, Adamantine
Pleochroism
AbsentWalter Schumann
Strong
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.370-1.470
1.762-1.788
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.008-0.009
Clarity
Transparent
Transparent
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
Black Opal Vs Sapphire Fracture
Fracture is an important parameter when you compare Black Opal and Sapphire Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Sapphire 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 Black Opal is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Sapphire fracture is Gems, Sixth Edition (2006), Uneven and Uneven.
Black Opal Vs Sapphire Luster
A primary knowledge about Black Opal vs Sapphire 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. Sapphire, on other hand, exhibits Adamantine, Adamantine, Vitreous and Vitreous luster.