Foitite Vs Howlite
Origin
Not Available, Southern and central Africa
Southern and central Africa
Color
Violet, Black
Blue, Colorless, White
Streak
gray, White, gray, White
White
For which Rashi?
Not Available
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Planet
Not Available
Moon
Element of Planets
Not Available
Earth
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Quan Yin
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.17
2.45-2.58
Fracture
Handbook of mineralogy (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Chemical Composition
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Strong: pale lavender dark blueAnthony et al
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
TranslucentAnthony et al, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.583-1.608
Optic Character
Not Available
Not Available
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
monoclinic
Birefringence
Not Available
0.019
Clarity
TranslucentAnthony et al
Gemmological Tables (2004) More from other references
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Foitite Vs Howlite Fracture
Fracture is an important parameter when you compare Foitite and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Foitite 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 Foitite is Handbook of mineralogy (2001). Howlite fracture is UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal.
Foitite Vs Howlite Luster
A primary knowledge about Foitite 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. Foitite exhibits Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.
