Facts about Tourmaline and Prehnite
Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Green, Colorless, gray, Yellow, White
For which Rashi?
Libra
Libra
Element of Planets
Water
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Receptive
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
2.80-2.95
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Indistinct
Distinct on [001]
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Ca2Al2Si3O12(OH)
Pleochroism
typically moderate to strong
AbsentWalter Schumann
Transparency
Transparent, Translucent, Transparent to opaque
Translucent
Refractive Index
1.614-1.666
1.611-1.673
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.014-0.040
0.021-0.033
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
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 Prehnite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Tourmaline Vs Prehnite specifications, it helps you to decide which gemstone suits your zodiac sign. Besides, the extent to which a gemstone benefits you can be understood after comparing Tourmaline and Prehnite Astrology. Its highly necessary to have a basic knowledge of facts about Tourmaline and Prehnite, before you finalize to buy one.
Tourmaline is known to regulate the influence of Mars and Venus planet.Tourmaline, that occurs commonly in Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink color, possesses Projective energy.Prehnite, the unique gem is known to regulate the influence of Venus planet. Prehnite, which is classic Green, Colorless, gray, Yellow, White colored gem, possesses Receptive energy.