Polyhalite

Hercynite

Polyhalite Vs Hercynite

Polyhalite

Hercynite

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Astrology

Origin

Austria

Color

Colorless, White, Red, gray, pink

Yellow, Black

Streak

White

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

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.784.39

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

Perfect on {10 1 }; parting on {010}

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

Mohs Hardness

3.57.5-8

2 10

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Chemical Composition

K2Ca2Mg(SO4)4·2H2O

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

Optical Properties

Luster

Vitreous, Resinous

Vitreous

Pleochroism

Dispersion

0.020.03

0.005 1

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Transparency

Translucent

Refractive Index

1.546-1.5481.80-1.83

1 3.25

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Optic Character

Crystal System

Triclinic

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

Birefringence

0.021-9999

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Healing

Physical healing

Qualities Associated

Emotional Healing

Balance

Polyhalite Vs Hercynite Fracture

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

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Polyhalite Vs Hercynite Luster

A primary knowledge about Polyhalite vs Hercynite 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. Polyhalite exhibits Vitreous and Resinous luster. Hercynite, on other hand, exhibits Vitreous luster.