Tourmaline

Iolite

Tourmaline Vs Iolite

Tourmaline

Iolite

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Astrology

Origin

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

Brazil, USA, Canada, Madagascar, Sri Lanka, India, Burma

Color

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

Blue, Violet, Yellow, Grey

Streak

White

For which Rashi?

Libra

Libra, Sagittarius, Taurus

Planet

Venus, Mars

Jupiter

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

Solubility

Durability

Specific Gravity

2.85-3.352.6-2.7

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

Indistinct

3,1

Mohs Hardness

7-7.57-7.5

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.

Mg₂Al₄Si₅O₁₈

Optical Properties

Luster

Vitreous

Pleochroism

typically moderate to strong

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent, Transparent to opaque

Transparent, Translucent, Transparent to translucent

Refractive Index

1.614-1.6661.52-1.56

1 3.25

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Optic Character

Crystal System

Trigonal

Orthorhombic

Birefringence

0.014-0.040-9999

0 0.296

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Clarity

Transparent

Transparent to translucent

Benefits

Physical

Neurological

Aids in mental clarity and focus

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Supports digestive health

Psychology

Protection

Intuition

Healing

Emotional healing

Qualities Associated

Protection

Intuition

Tourmaline Vs Iolite Fracture

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

Compare Semi Precious Gemstones

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Tourmaline Vs Iolite Luster

A primary knowledge about Tourmaline vs Iolite 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. Iolite, on other hand, exhibits Vitreous luster.