Fayalite

Cordierite Iolite

Fayalite Vs Cordierite Iolite

Fayalite

Cordierite Iolite

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Astrology

Origin

Southern and central Africa

Canada, Madagascar, Southern and central Africa, Sri Lanka, USA

Color

Yellow, Brown, Black

Violet, Blue

Streak

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.3922.56-2.66

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

{010} moderate, {100} imperfect

Distinct

Mohs Hardness

6.5-77-7.5

2 10

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Chemical Composition

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

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Resinous

Vitreous

Pleochroism

Faint

Strong trichroism: colorless to yellowish

Dispersion

0.030.02

0.005 1

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Transparency

TransparentAnthony et al

Transparent

Refractive Index

1.827-1.8791.542-1.578

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

Birefringence

0.042-0.0510.008-0.012

0 0.296

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Clarity

TransparentAnthony et al

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Inner vision

Healing

Physical healing

Emotional healing

Qualities Associated

Creativity

Intuition

Fayalite Vs Cordierite Iolite Fracture

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

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Fayalite Vs Cordierite Iolite Luster

A primary knowledge about Fayalite vs Cordierite Iolite 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. Cordierite Iolite, on other hand, exhibits Vitreous luster.