Cordierite

Chalcedony

Cordierite Vs Chalcedony

Cordierite

Chalcedony

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Astrology

Origin

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

Zimbabwe

Color

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

Violet, White, gray, Blue, Brown, Black

Streak

White

For which Rashi?

Cancer, Sagittarius

Planet

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Goddess Whope

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.57-2.662.55-2.70

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Splintery, Conchoidal

Cleavage

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

Absent

Mohs Hardness

7-7.56.5-7

2 10

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Chemical Composition

Mg2Al4Si5O18

SiO₂

Optical Properties

Luster

Greasy, Vitreous

Vitreous

Pleochroism

X = pale yellow

Dispersion

0.010.01

0.005 1

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Transparency

Translucent, Translucent to opaque

Refractive Index

-99991.530-1.543

1 3.25

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Optic Character

Crystal System

Orthorhombic

Trigonal

Birefringence

-99990.003-0.009

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Supports healthy digestion

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Intuition

Harmony

Healing

Emotional healing

Qualities Associated

Psychic Abilities

Harmony

Cordierite Vs Chalcedony Fracture

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

Compare Blue Gemstones

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Cordierite Vs Chalcedony Luster

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