Iolite

Cordierite

Iolite Vs Cordierite

Iolite

Cordierite

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Astrology

Origin

Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma

Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania

Color

Blue, Violet, Yellow, Grey

Blue, Violet, Greenish, Brown, Colorless, Yellow, gray

Streak

White

For which Rashi?

Libra, Sagittarius, Taurus

Planet

Jupiter

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.6-2.72.57-2.66

1 7.18

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Fracture

Subconchoidal, Conchoidal

Cleavage

3,1

Fair on {100}, poor on {001} and {010}

Mohs Hardness

7-7.57-7.5

2 10

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Chemical Composition

Mg₂Al₄Si₅O₁₈

Mg2Al4Si5O18

Optical Properties

Luster

Vitreous

Greasy, Vitreous

Pleochroism

X = pale yellow

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.52-1.56-9999

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

-9999-9999

0 0.296

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Clarity

Transparent to translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Supports healthy digestion

Cardiovascular

Supports heart health

Respiratory

Excellent

Good

Reproductive

Digestive

Supports digestive health

Psychology

Intuition

Healing

Emotional healing

Qualities Associated

Intuition

Psychic Abilities

Iolite Vs Cordierite Fracture

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

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Iolite Vs Cordierite Luster

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