Origin
Southern and central Africa
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil
Color
Blue, Colorless, White
Violet, White, Colorless, Blue, Red, Green, Yellow, pink
For which Rashi?
Gemini, Virgo
Pisces, Scorpio, Sagittarius
Element of Planets
Earth
Water
Solubility
-
insoluble in common solvents
Specific Gravity
2.45-2.58
2.65
Fracture
Conchoidal
Conchoidal, ConchoidalWalter Schumann
Cleavage
None
Indiscernible
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Transparency
-
Transparent, Transparent to translucent
Refractive Index
1.583-1.608
1.544-1.553
Crystal System
monoclinic
Trigonal
Birefringence
0.019
0.009
Neurological
Aids in mental clarity and focus
Enhances 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
Calming
Spirituality
Howlite Vs Amethyst Fracture
Fracture is an important parameter when you compare Howlite and Amethyst Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite 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 Howlite is Conchoidal. Amethyst fracture is Conchoidal and ConchoidalWalter Schumann.
Howlite Vs Amethyst Luster
A primary knowledge about Howlite 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. Howlite exhibits Vitreous luster. Amethyst, on other hand, exhibits Vitreous luster.