Bertrandite

Gahnospinel

Bertrandite Vs Gahnospinel

Bertrandite

Gahnospinel

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1 Astrology

1.1 Origin

Not Available, Southern and central Africa

Sri Lanka

1.2 Color

Colorless, Colorless, Yellow

Blue

1.3 Streak

White

Not Available

1.4 For which Rashi?

Not Available

Sagittarius, Scorpio

1.5 Planet

Not Available

Pluto

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

Projective

1.9 Deities

Not Available

Hephaestus

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Money

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

2.59-2.603.65-4.55

1 7.18

2.5 Fracture

Brittle, Metallic, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

None, but may exhibit slight parting

2.7 Mohs Hardness

6-77.5-8

2 10

2.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

none.

AbsentWalter Schumann

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Gemmological Tables (2004)

3.5 Refractive Index

1.583-1.6141.735-1.790

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Isometric

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

TransparentAnthony et al

TransparentUlrich Henn and Claudio C. Milisenda

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

Bertrandite Vs Gahnospinel Fracture

Fracture is an important parameter when you compare Bertrandite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Bertrandite Vs Gahnospinel 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 Bertrandite is Brittle, Brittle, Metallic and Metallic. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).

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Bertrandite Vs Gahnospinel Luster

A primary knowledge about Bertrandite vs Gahnospinel 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. Bertrandite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.