Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Mexico
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
White, Colorless, White, pink, Yellow, Brown
For which Rashi?
Libra
Cancer
Element of Planets
Water
Earth, Sun
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Receptive
Deities
Venus
Not Available
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Spirituality, Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
2.67-2.73
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Indistinct
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
CaCO 3Ulrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Pearly
Pleochroism
typically moderate to strong
NilArthur Thomas
Transparency
Transparent, Translucent, Transparent to opaque
Transparent, Translucent
Refractive Index
1.614-1.666
1.486-1.658
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.040
0.154-0.174
Clarity
Transparent
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
Tourmaline Vs Calcite Fracture
Fracture is an important parameter when you compare Tourmaline and Calcite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Calcite 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 Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Calcite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Tourmaline Vs Calcite Luster
A primary knowledge about Tourmaline vs Calcite 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. Calcite, on other hand, exhibits Pearly and Vitreous luster.