Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Southern and central Africa, green
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Green
For which Rashi?
Libra
Capricorn, Scorpio, Capricorn, Scorpio, Capricorn, Scorpio
Element of Planets
Water
Earth
Energy
Projective
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Protection
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
2.85-3.35
3.25-4.10
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Cleavage
Indistinct
Perfect on { 2 01} fair on {010}
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Cu2CO3(OH)2
Luster
Vitreous
Adamantine, Vitreous, Silky, Fibrous
Pleochroism
typically moderate to strong
Not Available
Transparency
Transparent, Translucent, Transparent to opaque
Opaque
Refractive Index
1.614-1.666
1.655-1.909
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.014-0.040
0.254
Clarity
Transparent
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
Tourmaline Vs Malachite Fracture
Fracture is an important parameter when you compare Tourmaline and Malachite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Malachite 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 Tourmaline is Uneven, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009). Malachite fracture is Conchoidal, Conchoidal, Gemstones (2009) and Uneven.
Tourmaline Vs Malachite Luster
A primary knowledge about Tourmaline vs Malachite 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. Tourmaline exhibits Vitreous luster. Malachite, on other hand, exhibits Adamantine, Vitreous, Silky and Fibrous luster.
