Bertrandite

Nephrite

Bertrandite Vs Nephrite

Bertrandite

Nephrite

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Astrology

Origin

Southern and central Africa

China, Canada

Color

Colorless, Yellow

Green, Yellow, Brown, White, gray, Black

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

2.59-2.602.90-3.10

1 7.18

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Fracture

Splintery, Granular

Cleavage

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

None

Mohs Hardness

6-76-6.5

2 10

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Chemical Composition

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

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

Optical Properties

Luster

Vitreous

Vitreous, Greasy

Pleochroism

none.

None

Dispersion

0.010.01

0.005 1

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Transparency

TransparentAnthony et al

Translucent

Refractive Index

1.583-1.6141.600-1.627

1 3.25

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Optic Character

Crystal System

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

monoclinic

Birefringence

-99990.027

0 0.296

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Clarity

TransparentAnthony et al

Translucent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Promotes mental clarity

Respiratory

Good

Reproductive

Digestive

Psychology

Harmony

Emotional Balance

Healing

Emotional healing

Physical healing

Qualities Associated

Creativity

Healing

Bertrandite Vs Nephrite Fracture

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

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Bertrandite Vs Nephrite Luster

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