Nephrite

Howlite

Nephrite Vs Howlite

Nephrite

Howlite

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Astrology

Origin

China, Canada

Southern and central Africa

Color

Green, Yellow, Brown, White, gray, Black

Blue, Colorless, White

Streak

White

For which Rashi?

Gemini, Virgo

Planet

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Quan Yin

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.102.45-2.58

1 7.18

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Fracture

Splintery, Granular

Conchoidal

Cleavage

None

Mohs Hardness

6-6.53-3.5

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

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Translucent

Refractive Index

1.600-1.6271.583-1.608

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

0.0270.019

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Balance

Calming

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Calming

Nephrite Vs Howlite Fracture

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

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Nephrite Vs Howlite Luster

A primary knowledge about Nephrite vs Howlite 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. Howlite, on other hand, exhibits Vitreous luster.