Gahnite

Tourmaline

Gahnite Vs Tourmaline

Gahnite

Tourmaline

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1 Astrology

1.1 Origin

Australia

Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan

1.2 Color

Blue, Green, Greenish, Black

Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink

1.3 Streak

Grey, gray

White

1.4 For which Rashi?

Not Available

Libra

1.5 Planet

Not Available

Venus, Mars

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective

1.9 Deities

Not Available

Venus

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Love, Courage

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.00-4.622.85-3.35

1 7.18

2.5 Fracture

Conchoidal, Uneven

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

Indistinct parting on [111]

Indistinct

2.7 Mohs Hardness

7.5-87-7.5

2 10

2.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

typically moderate to strong

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Transparent, Translucent, Transparent to opaque

3.5 Refractive Index

1.790-1.8181.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

Trigonal

3.8 Birefringence

Not Available0.014-0.040

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Gahnite Vs Tourmaline Fracture

Fracture is an important parameter when you compare Gahnite and Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite 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 Gahnite is Conchoidal and Uneven. Tourmaline fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.

Compare Blue Gemstones

Gahnite Vs Indicolite Blue Tourmaline

Gahnite Vs Hydrogrossular

Gahnite Vs Howlite

Gahnite Vs Tourmaline Luster

A primary knowledge about Gahnite 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. Gahnite exhibits Vitreous luster. Tourmaline, on other hand, exhibits Vitreous luster.