Dumortierite

Iolite

Dumortierite Vs Iolite

Dumortierite

Iolite

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Astrology

Origin

Southern and central Africa

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

Color

Blue, Violet, Brown, White, Greenish, pink

Blue, Violet, Yellow, Grey

Streak

White

For which Rashi?

Leo, Sagittarius

Libra, Sagittarius, Taurus

Planet

Saturn

Jupiter

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Isis

Not to wear with

Powers

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.26-3.412.6-2.7

1 7.18

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Fracture

Fibrous, ConchoidalWalter Schumann

Cleavage

Distinct on {100}, poor on {110}; parting on {001}

3,1

Mohs Hardness

7-8.57-7.5

2 10

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Chemical Composition

AlAl₆O₃BSi₃O₁₈

Mg₂Al₄Si₅O₁₈

Optical Properties

Luster

Vitreous

Pleochroism

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

Dispersion

0.010.02

0.005 1

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Transparency

Translucent, Translucent to opaque

Transparent, Translucent, Transparent to translucent

Refractive Index

1.669-1.7231.52-1.56

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

0.011-0.037-9999

0 0.296

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Clarity

Translucent

Transparent to translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Supports digestive health

Psychology

Patience

Intuition

Healing

Emotional healing

Qualities Associated

Patience

Intuition

Dumortierite Vs Iolite Fracture

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

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Dumortierite Vs Iolite Luster

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