Gahnite

Cobaltite

Gahnite Vs Cobaltite

Gahnite

Cobaltite

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1 Astrology

1.1 Origin

Australia

Canada

1.2 Color

Blue, Green, Greenish, Black

Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black

1.3 Streak

Grey, gray

Black

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

4.00-4.626.3

1 7.18

2.5 Fracture

Conchoidal, Uneven

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

2.6 Cleavage

Indistinct parting on [111]

{100} Good, {010} Good, {001} Good

2.7 Mohs Hardness

7.5-85.5

2 10

2.8 Chemical Composition

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

CoAsSAnthony et al , Handbook of mineralogy (2001)

3 Optical Properties

3.1 Luster

Vitreous

Not Available

3.2 Pleochroism

Not Available

Very weak

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Gems

3.5 Refractive Index

1.790-1.818Not Available

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Gems

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 Cobaltite Fracture

Fracture is an important parameter when you compare Gahnite and Cobaltite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Cobaltite 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. Cobaltite fracture is Brittle, Handbook of mineralogy (2001) More from other references, Handbook of mineralogy (2001) More from other references, Metallic, UnevenAnthony et al and UnevenAnthony et al.

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Gahnite Vs Cobaltite Luster

A primary knowledge about Gahnite vs Cobaltite 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.