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
Blue, Colorless, White
For which Rashi?
Pisces, Scorpio, Sagittarius
Gemini, Virgo
Element of Planets
Water
Earth
Solubility
insoluble in common solvents
-
Specific Gravity
2.65
2.45-2.58
Fracture
Conchoidal, ConchoidalWalter Schumann
Conchoidal
Cleavage
Indiscernible
None
Chemical Composition
SiO2
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Transparency
Transparent, Transparent to translucent
-
Refractive Index
1.544-1.553
1.583-1.608
Crystal System
Trigonal
monoclinic
Birefringence
0.009
0.019
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Cardiovascular
Supports heart health
-
Reproductive
Supports reproductive health
-
Digestive
Supports digestive health
-
Psychology
Calming
Calming
Healing
Emotional healing
Emotional healing
Qualities Associated
Spirituality
Calming
Amethyst Vs Howlite Fracture
Fracture is an important parameter when you compare Amethyst and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Amethyst Vs Howlite 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. Howlite fracture is Conchoidal.
Amethyst Vs Howlite Luster
A primary knowledge about Amethyst vs Howlite 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. Howlite, on other hand, exhibits Vitreous luster.