Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Brazil
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Yellow, Red, White, White, Colorless, Blue, Red, Green, Yellow, pink, Black, Blue, Brown
For which Rashi?
Libra
Gemini
Planet
Venus, Mars
Not Available
Element of Planets
Water
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Projective
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Courage, Love, Healing, 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
2.60-2.64
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Indistinct
Indiscernible
Mohs Hardness
7-7.5
6.5-7
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
SiO2
Pleochroism
typically moderate to strong
Absent
Transparency
Transparent, Translucent, Transparent to opaque
Translucent
Refractive Index
1.614-1.666
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.014-0.040
0.004
Clarity
Transparent
Translucent
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 Agate Fracture
Fracture is an important parameter when you compare Tourmaline and Agate Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Agate 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. Agate fracture is Conchoidal, Gemstones of the world (2001) and UnevenWalter Schumann.
Tourmaline Vs Agate Luster
A primary knowledge about Tourmaline vs Agate 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. Agate, on other hand, exhibits Vitreous luster.