Nephrite

Alexandrite

Nephrite Vs Alexandrite

Nephrite

Alexandrite

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Astrology

Origin

China, Canada

Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia

Color

Green, Yellow, Brown, White, gray, Black

Green

Streak

For which Rashi?

Scorpio

Planet

Venus

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Love

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.103.69-3.81

1 7.18

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Fracture

Splintery, Granular

Cleavage

None

1,1 ; 3,2.

Mohs Hardness

6-6.58.5

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

BeAl ₂ O ₄

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Transparent, Transparent to nearly opaque

Refractive Index

1.600-1.6271.739-1.770

1 3.25

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Optic Character

Biaxial/+

Crystal System

monoclinic

Orthorhombic

Birefringence

0.0270.007-0.010

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Aids in grounding and protection

Respiratory

Good

Excellent

Reproductive

Supports reproductive health

Digestive

Psychology

Emotional Balance

Transformation

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Transformation

Nephrite Vs Alexandrite Fracture

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

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Nephrite Vs Alexandrite Luster

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