Nephrite

Petalite

Nephrite Vs Petalite

Nephrite

Petalite

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Astrology

Origin

China, Canada

Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia

Color

Green, Yellow, Brown, White, gray, Black

Colorless, gray, Yellow, White

Streak

Colorless

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

Brittle

Solubility

insoluble

Durability

Specific Gravity

2.90-3.102.40

1 7.18

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Fracture

Splintery, Granular

Subconchoidal, ConchoidalWalter Schumann, Conchoidal

Cleavage

None

Perfect on {001}, poor on {201} with 38.5° angle between the two

Mohs Hardness

6-6.56-6.5

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

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Greasy

Vitreous, Pearly

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Translucent

Refractive Index

1.600-1.6271.502-1.523

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

0.0270.012-0.016

0 0.296

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Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Balance

Calmness

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Peace

Nephrite Vs Petalite Fracture

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

Compare Green Gemstones

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Nephrite Vs Petalite Luster

A primary knowledge about Nephrite vs Petalite 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. Petalite, on other hand, exhibits Vitreous and Pearly luster.