Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Not Available, Southern and central Africa
Color
Blue, Violet, Colorless, Red, Green, Brown
Violet, Black
Streak
White
gray, White, gray, White
For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
Planet
Pluto
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Not Available
Deities
Hephaestus
Not Available
Not to wear with
Not Available
Not Available
Powers
Money
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.17
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Handbook of mineralogy (2001)
Cleavage
None, but may exhibit slight parting
None
Chemical Composition
MgAl2O4
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Absent
Strong: pale lavender dark blueAnthony et al
Transparency
Transparent, Translucent, Transparent to translucent
TranslucentAnthony et al, Translucent
Refractive Index
1.73
Not Available
Optic Character
Not Available
Not Available
Crystal System
Isometric
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
Not Available
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al
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
Spinel Vs Foitite Fracture
Fracture is an important parameter when you compare Spinel and Foitite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel Vs Foitite 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 Spinel is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Foitite fracture is Handbook of mineralogy (2001).
Spinel Vs Foitite Luster
A primary knowledge about Spinel vs Foitite 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. Spinel exhibits Vitreous luster. Foitite, on other hand, exhibits Vitreous luster.