Hercynite

Blue John

Hercynite Vs Blue John

Hercynite

Blue John

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Astrology

Origin

Color

Yellow, Black

White, Colorless, Blue, Red, Green, Yellow, Violet

Streak

Green

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

4.393.00-3.25

1 7.18

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Fracture

Uneven

Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

Perfect

Mohs Hardness

7.5-8-9999

2 10

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Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous

Pleochroism

Dispersion

0.030.02

0.005 1

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Transparency

Translucent

Transparent

Refractive Index

1.80-1.831.432-1.436

1 3.25

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Optic Character

Crystal System

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

Birefringence

-9999-9999

0 0.296

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Clarity

Translucent

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Harmony

Healing

Emotional healing

Qualities Associated

Balance

Mental Clarity

Hercynite Vs Blue John Fracture

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

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Hercynite Vs Blue John Luster

A primary knowledge about Hercynite 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. Hercynite exhibits Vitreous luster.