Gahnite

Hollandite

Gahnite Vs Hollandite

Gahnite

Hollandite

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1 Astrology

1.1 Origin

Australia

Not Available

1.2 Color

Blue, Green, Greenish, Black

Grey, Black, gray

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

4.00-4.625.05

1 7.18

2.5 Fracture

Conchoidal, Uneven

Brittle, Metallic

2.6 Cleavage

Indistinct parting on [111]

Distinct / Good, Prismatic

2.7 Mohs Hardness

7.5-84-6

2 10

2.8 Chemical Composition

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

Ba(Mn++++,Mn++)8O16

3 Optical Properties

3.1 Luster

Vitreous

Not Available

3.2 Pleochroism

Not Available

Weak.

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

3.5 Refractive Index

1.790-1.818Not Available

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

monoclinic

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Not Available

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 Hollandite Fracture

Fracture is an important parameter when you compare Gahnite and Hollandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Hollandite 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. Hollandite fracture is Brittle and Metallic.

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Gahnite Vs Hollandite Luster

A primary knowledge about Gahnite vs Hollandite 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.