Cordierite Iolite

Opal

Cordierite Iolite Vs Opal

Cordierite Iolite

Opal

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Astrology

Origin

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

Ethiopia

Color

Violet, Blue

Yellow, White, Red, Brown, Blue

Streak

White

For which Rashi?

Cancer, Libra, Scorpio

Planet

Mercury

Element of Planets

Earth, Air, Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Cupid

Not to wear with

Powers

Astral Projection, Psychicism

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

BrittleWalter Schumann

Solubility

hot salt water

Durability

Specific Gravity

2.56-2.661.98-2.25

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Conchoidal

Cleavage

Distinct

None

Mohs Hardness

7-7.55-6.5

2 10

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Chemical Composition

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

SiO₂ · nH₂O

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

Strong trichroism: colorless to yellowish

None

Dispersion

0.020.01

0.005 1

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Transparency

Transparent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.542-1.5781.37-1.52

1 3.25

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Optic Character

Biaxial/+

Crystal System

Trigonal

Birefringence

0.008-0.012-9999

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Inner vision

Creativity

Healing

Emotional healing

Qualities Associated

Intuition

Creativity

Cordierite Iolite Vs Opal Fracture

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

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Cordierite Iolite Vs Opal Luster

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