Nephrite

Bertrandite

Nephrite Vs Bertrandite

Nephrite

Bertrandite

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Astrology

Origin

China, Canada

Southern and central Africa

Color

Green, Yellow, Brown, White, gray, Black

Colorless, Yellow

Streak

White

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

2.90-3.102.59-2.60

1 7.18

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Fracture

Splintery, Granular

Cleavage

None

{001} Perfect, {110} Distinct, {101} Distinct

Mohs Hardness

6-6.56-7

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

none.

Dispersion

0.010.01

0.005 1

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Transparency

Translucent

TransparentAnthony et al

Refractive Index

1.600-1.6271.583-1.614

1 3.25

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Optic Character

Crystal System

monoclinic

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

0.027-9999

0 0.296

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Clarity

Translucent

TransparentAnthony et al

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Promotes mental clarity

Respiratory

Good

Reproductive

Digestive

Psychology

Emotional Balance

Harmony

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Creativity

Nephrite Vs Bertrandite Fracture

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

Compare Green Gemstones

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Nephrite Vs Bertrandite Luster

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