Nephrite

Spinel

Nephrite Vs Spinel

Nephrite

Spinel

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Astrology

Origin

China, Canada

Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia

Color

Green, Yellow, Brown, White, gray, Black

Blue, Violet, Colorless, Red, Green, Brown

Streak

White

For which Rashi?

Sagittarius, Scorpio

Planet

Pluto

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Hephaestus

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.90-3.103.64-3.66

1 7.18

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Fracture

Splintery, Granular

Conchoidal, Uneven

Cleavage

None

None, but may exhibit slight parting

Mohs Hardness

6-6.58

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

MgAl₂O₄

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

None

Absent

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.600-1.6271.73

1 3.25

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Optic Character

Crystal System

monoclinic

Isometric

Birefringence

0.027-9999

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

Revitalization

Healing

Physical healing

Emotional healing

Qualities Associated

Healing

Vitality

Nephrite Vs Spinel Fracture

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

Compare Green Gemstones

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Nephrite Vs Spinel Luster

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