Cordierite

Dumortierite

Cordierite Vs Dumortierite

Cordierite

Dumortierite

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Astrology

Origin

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

Southern and central Africa

Color

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

Blue, Violet, Brown, White, Greenish, pink

Streak

White

For which Rashi?

Leo, Sagittarius

Planet

Saturn

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Isis

Not to wear with

Powers

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.57-2.663.26-3.41

1 7.18

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Fracture

Subconchoidal, Conchoidal

Fibrous, ConchoidalWalter Schumann

Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

Mohs Hardness

7-7.57-8.5

2 10

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Chemical Composition

Mg2Al4Si5O18

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Greasy, Vitreous

Vitreous

Pleochroism

X = pale yellow

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

Dispersion

0.010.01

0.005 1

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Transparency

Translucent, Translucent to opaque

Refractive Index

-99991.669-1.723

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

-99990.011-0.037

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Supports healthy digestion

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Intuition

Patience

Healing

Emotional healing

Qualities Associated

Psychic Abilities

Patience

Cordierite Vs Dumortierite Fracture

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

Compare Blue Gemstones

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Cordierite Vs Dumortierite Luster

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