Gahnite

Foitite

Gahnite Vs Foitite

Gahnite

Foitite

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1 Astrology

1.1 Origin

Australia

Not Available, Southern and central Africa

1.2 Color

Blue, Green, Greenish, Black

Violet, Black

1.3 Streak

Grey, gray

gray, White, gray, White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

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

4.00-4.623.17

1 7.18

2.5 Fracture

Conchoidal, Uneven

Handbook of mineralogy (2001)

2.6 Cleavage

Indistinct parting on [111]

None

2.7 Mohs Hardness

7.5-87

2 10

2.8 Chemical Composition

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

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

Strong: pale lavender dark blueAnthony et al

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

TranslucentAnthony et al, Translucent

3.5 Refractive Index

1.790-1.818Not Available

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TranslucentAnthony et al

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 Foitite Fracture

Fracture is an important parameter when you compare Gahnite and Foitite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Foitite 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. Foitite fracture is Handbook of mineralogy (2001).

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Gahnite Vs Foitite Luster

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