Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Color
Blue, Violet, Colorless, Red, Green, Brown
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Libra
Element of Planets
Not Available
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Projective
Not to wear with
Not Available
Not Available
Powers
Money
Love, Courage
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
2.85-3.35
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit slight parting
Indistinct
Chemical Composition
MgAl2O4
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Pleochroism
Absent
typically moderate to strong
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.73
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Isometric
Trigonal
Birefringence
Not Available
0.014-0.040
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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 Tourmaline Fracture
Fracture is an important parameter when you compare Spinel and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel Vs Tourmaline 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. Tourmaline fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Spinel Vs Tourmaline Luster
A primary knowledge about Spinel vs Tourmaline 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. Tourmaline, on other hand, exhibits Vitreous luster.