Fayalite

Covellite

Fayalite Vs Covellite

Fayalite

Covellite

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1 Astrology

1.1 Origin

Southern and central Africa

Mexico

1.2 Color

Yellow, Brown, Black, Black

Blue, Blue, Black

1.3 Streak

White

Grey, Black, gray

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

Flexible

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.3924.6-4.76

1 7.18

2.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

2.6 Cleavage

{010} moderate, {100} imperfect

Perfect on {0001}

2.7 Mohs Hardness

6.5-7Not Available

2 10

2.8 Chemical Composition

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

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

3 Optical Properties

3.1 Luster

Vitreous, Resinous

Resinous

3.2 Pleochroism

Faint

Marked

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references

3.5 Refractive Index

1.827-1.8791.45-2.62

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

Hexagonal

3.8 Birefringence

0.042-0.051Not Available

0 0.296

3.9 Clarity

TransparentAnthony et al

OpaqueAnthony 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

Fayalite Vs Covellite Fracture

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

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Fayalite Vs Covellite Luster

A primary knowledge about Fayalite vs Covellite 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. Covellite, on other hand, exhibits Resinous luster.