Nephrite

Dumortierite

Nephrite Vs Dumortierite

Nephrite

Dumortierite

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Astrology

Origin

China, Canada

Southern and central Africa

Color

Green, Yellow, Brown, White, gray, Black

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

Solubility

Durability

Specific Gravity

2.90-3.103.26-3.41

1 7.18

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Fracture

Splintery, Granular

Fibrous, ConchoidalWalter Schumann

Cleavage

None

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

Mohs Hardness

6-6.57-8.5

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

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

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, Translucent to opaque

Refractive Index

1.600-1.6271.669-1.723

1 3.25

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Optic Character

Crystal System

monoclinic

Orthorhombic

Birefringence

0.0270.011-0.037

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Balance

Patience

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Patience

Nephrite Vs Dumortierite Fracture

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

Compare Green Gemstones

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Nephrite Vs Dumortierite Luster

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