Dumortierite

Sugilite

Dumortierite Vs Sugilite

Dumortierite

Sugilite

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Astrology

Origin

Southern and central Africa

Canada, Southern and central Africa, Italy, Australia, India

Color

Blue, Violet, Brown, White, Greenish, pink

Violet, Brownish, Yellow, Reddish, Pale pink

Streak

White

For which Rashi?

Leo, Sagittarius

Virgo

Planet

Saturn

Mercury, 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

3.26-3.412.69-2.79

1 7.18

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Fracture

Fibrous, ConchoidalWalter Schumann

Conchoidal

Cleavage

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

Poor on {0001}

Mohs Hardness

7-8.55.5-6.5

2 10

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Chemical Composition

AlAl₆O₃BSi₃O₁₈

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Weak

Dispersion

0.010.02

0.005 1

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Transparency

Translucent, Translucent to opaque

Translucent

Refractive Index

1.669-1.7231.607-1.612

1 3.25

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Optic Character

Crystal System

Orthorhombic

Hexagonal

Birefringence

0.011-0.0370.003

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Patience

Spirituality

Healing

Emotional healing

Qualities Associated

Patience

Spiritual Protection

Dumortierite Vs Sugilite Fracture

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

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Dumortierite Vs Sugilite Luster

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