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Fayalite
Fayalite

Marcasite
Marcasite



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Fayalite
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Marcasite

Fayalite Vs Marcasite

Astrology

Origin

Southern and central Africa
Southern and central Africa

Color

Yellow, Brown, Black
Yellow, White

Streak

White
gray, Brownish, Black

For which Rashi?

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-

Planet

-
-

Element of Planets

-
-

Energy

-
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How to Wear?

Finger

-

Ring Metal

-
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Deities

-
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Not to wear with

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Powers

-
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Birthstone

Planetary

-
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Talisman

-
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.3924.80-4.90
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

{010} moderate, {100} imperfect
{010} Indistinct

Mohs Hardness

6.5-76-6.5
2 10
👆🏻

Chemical Composition

Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Resinous
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Pleochroism

Faint
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Dispersion

0.030.05
0.005 1
👆🏻

Transparency

TransparentAnthony et al
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Refractive Index

1.827-1.879-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
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Birefringence

0.042-0.051-9999
0 0.296
👆🏻

Clarity

TransparentAnthony et al
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Benefits

Physical

Neurological

-
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Cardiovascular

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Respiratory

Good
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Reproductive

-
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Digestive

-
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Psychology

Creativity
Protection

Healing

Physical healing
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Qualities Associated

Creativity
Protection

Fayalite Vs Marcasite Fracture

Fracture is an important parameter when you compare Fayalite and Marcasite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Marcasite 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 Conchoidal. Marcasite fracture is Uneven.

Fayalite Vs Marcasite Luster

A primary knowledge about Fayalite vs Marcasite 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 Vitreous and Resinous luster.