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Nephrite
Nephrite

Blue John
Blue John



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Nephrite
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Blue John

Nephrite Vs Blue John

Astrology

Origin

China, Canada
-

Color

Green, Yellow, Brown, White, gray, Black
White, Colorless, Blue, Red, Green, Yellow, Violet

Streak

-
-

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

2.90-3.103.00-3.25
1 7.18
👆🏻

Fracture

Splintery, Granular
-

Cleavage

None
Perfect

Mohs Hardness

6-6.5-9999
2 10
👆🏻

Chemical Composition

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

None
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.600-1.6271.432-1.436
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.027-9999
0 0.296
👆🏻

Clarity

Translucent
Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
Supports heart health

Respiratory

Good
Excellent

Reproductive

-
-

Digestive

-
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Psychology

Emotional Balance
Harmony

Healing

Physical healing
Emotional healing

Qualities Associated

Healing
Mental Clarity

Nephrite Vs Blue John Fracture

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

Nephrite Vs Blue John Luster

A primary knowledge about Nephrite vs Blue John 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.