Jet

Dumortierite

Jet Vs Dumortierite

Jet

Dumortierite

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Astrology

Origin

Spain

Southern and central Africa

Color

Black

Blue, Violet, Brown, White, Greenish, pink

Streak

White

For which Rashi?

Capricorn

Leo, Sagittarius

Planet

Saturn

Element of Planets

Earth

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Cybele

Isis

Not to wear with

Powers

Protection

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

1.19-1.353.26-3.41

1 7.18

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Fracture

ConchoidalWalter Schumann

Fibrous, ConchoidalWalter Schumann

Cleavage

None

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

Mohs Hardness

2.5-47-8.5

2 10

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Chemical Composition

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Waxy

Vitreous

Pleochroism

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

Dispersion

0.010.01

0.005 1

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Transparency

Translucent, Translucent to opaque

Refractive Index

1.640-1.6801.669-1.723

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

-99990.011-0.037

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Protection

Patience

Healing

Emotional healing

Qualities Associated

Protection

Patience

Jet Vs Dumortierite Fracture

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

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Jet Vs Dumortierite Luster

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