Origin
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil
Southern and central Africa
Color
Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Yellow, White
Streak
White
gray, Brownish, Black
For which Rashi?
Pisces, Scorpio, Sagittarius
-
Element of Planets
Water
-
Solubility
insoluble in common solvents
-
Specific Gravity
2.65
4.80-4.90
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven
Cleavage
Indiscernible
{010} Indistinct
Chemical Composition
SiO2
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Transparency
Transparent, Transparent to translucent
-
Refractive Index
1.544-1.553
-9999
Crystal System
Trigonal
-
Birefringence
0.009
-9999
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
-
Reproductive
Supports reproductive health
-
Digestive
Supports digestive health
-
Psychology
Calming
Protection
Healing
Emotional healing
-
Qualities Associated
Spirituality
Protection
Amethyst Vs Marcasite Fracture
Fracture is an important parameter when you compare Amethyst and Marcasite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Marcasite 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 Amethyst is Conchoidal and ConchoidalWalter Schumann. Marcasite fracture is Uneven.
Amethyst Vs Marcasite Luster
A primary knowledge about Amethyst vs Marcasite 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 exhibits Vitreous luster.