Nephrite

Cordierite Iolite

Nephrite Vs Cordierite Iolite

Nephrite

Cordierite Iolite

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Astrology

Origin

China, Canada

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

Color

Green, Yellow, Brown, White, gray, Black

Violet, Blue

Streak

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

2.90-3.102.56-2.66

1 7.18

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Fracture

Splintery, Granular

Uneven, ConchoidalWalter Schumann

Cleavage

None

Distinct

Mohs Hardness

6-6.57-7.5

2 10

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Chemical Composition

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

Strong trichroism: colorless to yellowish

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Transparent

Refractive Index

1.600-1.6271.542-1.578

1 3.25

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Optic Character

Biaxial/+

Crystal System

monoclinic

Birefringence

0.0270.008-0.012

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Balance

Inner vision

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Intuition

Nephrite Vs Cordierite Iolite Fracture

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

Compare Green Gemstones

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Nephrite Vs Cordierite Iolite Luster

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