Origin
Australia
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Violet, White, Colorless, Blue, Red, Green, Yellow, pink
For which Rashi?
-
Pisces, Scorpio, Sagittarius
Element of Planets
-
Water
Solubility
-
insoluble in common solvents
Specific Gravity
1.97-2.22
2.65
Fracture
Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
None
Indiscernible
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
SiO2
Transparency
Transparent, Translucent
Transparent, Transparent to translucent
Refractive Index
1.370-1.470
1.544-1.553
Crystal System
-
Trigonal
Birefringence
-9999
0.009
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Reproductive
-
Supports reproductive health
Digestive
-
Supports digestive health
Psychology
Transformation
Calming
Healing
Emotional healing
Emotional healing
Qualities Associated
Mystery
Spirituality
Black Opal Vs Amethyst Fracture
Fracture is an important parameter when you compare Black Opal and Amethyst Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Amethyst 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 Conchoidal. Amethyst fracture is Conchoidal and ConchoidalWalter Schumann.
Black Opal Vs Amethyst Luster
A primary knowledge about Black Opal vs Amethyst 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. Amethyst, on other hand, exhibits Vitreous luster.