Origin
Sri Lanka, India, Brazil
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil
Color
Green, Brown, Colorless, gray, Yellow
Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Streak
Brownish, White
White
For which Rashi?
-
Pisces, Scorpio, Sagittarius
Element of Planets
-
Water
Solubility
-
insoluble in common solvents
Specific Gravity
3.55-3.73
2.65
Fracture
Conchoidal, Uneven
Conchoidal, ConchoidalWalter Schumann
Cleavage
none
Indiscernible
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
SiO2
Luster
Greasy, Vitreous
Vitreous
Transparency
-
Transparent, Transparent to translucent
Refractive Index
1.730-1.760
1.544-1.553
Crystal System
cubic
Trigonal
Birefringence
0.020
0.009
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Reproductive
Helps in digestion and alleviates indigestion
Supports reproductive health
Digestive
-
Supports digestive health
Psychology
Abundance
Calming
Healing
Physical healing
Emotional healing
Qualities Associated
Abundance
Spirituality
Grossular Vs Amethyst Fracture
Fracture is an important parameter when you compare Grossular and Amethyst Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular 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 Grossular is Conchoidal and Uneven. Amethyst fracture is Conchoidal and ConchoidalWalter Schumann.
Grossular Vs Amethyst Luster
A primary knowledge about Grossular 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. Grossular exhibits Greasy and Vitreous luster. Amethyst, on other hand, exhibits Vitreous luster.