Iolite

Tourmaline

Iolite Vs Tourmaline

Iolite

Tourmaline

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Astrology

Origin

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

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

Color

Blue, Violet, Yellow, Grey

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

Streak

White

For which Rashi?

Libra, Sagittarius, Taurus

Libra

Planet

Jupiter

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

Solubility

Durability

Specific Gravity

2.6-2.72.85-3.35

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

3,1

Indistinct

Mohs Hardness

7-7.57-7.5

2 10

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Chemical Composition

Mg₂Al₄Si₅O₁₈

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

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 translucent

Transparent, Translucent, Transparent to opaque

Refractive Index

1.52-1.561.614-1.666

1 3.25

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Optic Character

Crystal System

Orthorhombic

Trigonal

Birefringence

-99990.014-0.040

0 0.296

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Clarity

Transparent to translucent

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Aids in mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Excellent

Good

Reproductive

Digestive

Supports digestive health

Psychology

Intuition

Protection

Healing

Emotional healing

Qualities Associated

Intuition

Protection

Iolite Vs Tourmaline Fracture

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

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Iolite Vs Tourmaline Luster

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