Fayalite

Gahnospinel

Fayalite Vs Gahnospinel

Fayalite

Gahnospinel

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1 Astrology

1.1 Origin

Southern and central Africa

Sri Lanka

1.2 Color

Yellow, Brown, Black, Black

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

4.3923.65-4.55

1 7.18

2.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

{010} moderate, {100} imperfect

None, but may exhibit slight parting

2.7 Mohs Hardness

6.5-77.5-8

2 10

2.8 Chemical Composition

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

3 Optical Properties

3.1 Luster

Vitreous, Resinous

Vitreous

3.2 Pleochroism

Faint

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

1.827-1.8791.735-1.790

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

Isometric

3.8 Birefringence

0.042-0.051Not 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

Fayalite Vs Gahnospinel Fracture

Fracture is an important parameter when you compare Fayalite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite 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 Fayalite is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001). Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).

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Fayalite Vs Gahnospinel Luster

A primary knowledge about Fayalite 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. Fayalite exhibits Resinous and Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.