Tourmaline

Polyhalite

Tourmaline Vs Polyhalite

Tourmaline

Polyhalite

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Astrology

Origin

Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan

Austria

Color

Green, Blue, Yellow, Red, Brown, White, Colorless, pink

Colorless, White, Red, gray, pink

Streak

White

For which Rashi?

Libra

Planet

Venus, Mars

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Venus

Not to wear with

Powers

Love, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.85-3.352.78

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal

Cleavage

Indistinct

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

Mohs Hardness

7-7.53.5

2 10

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Chemical Composition

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

K2Ca2Mg(SO4)4·2H2O

Optical Properties

Luster

Vitreous

Vitreous, Resinous

Pleochroism

typically moderate to strong

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent, Transparent to opaque

Refractive Index

1.614-1.6661.546-1.548

1 3.25

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Optic Character

Crystal System

Trigonal

Triclinic

Birefringence

0.014-0.0400.021

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Supports digestive health

Psychology

Protection

Healing

Emotional healing

Physical healing

Qualities Associated

Protection

Emotional Healing

Tourmaline Vs Polyhalite Fracture

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

Compare Semi Precious Gemstones

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Tourmaline Vs Polyhalite Luster

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