Opal

Dumortierite

Opal Vs Dumortierite

Opal

Dumortierite

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Astrology

Origin

Ethiopia

Southern and central Africa

Color

Yellow, White, Red, Brown, Blue

Blue, Violet, Brown, White, Greenish, pink

Streak

White

For which Rashi?

Cancer, Libra, Scorpio

Leo, Sagittarius

Planet

Mercury

Saturn

Element of Planets

Earth, Air, Water

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Cupid

Isis

Not to wear with

Powers

Astral Projection, Psychicism

Healing

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

BrittleWalter Schumann

Solubility

hot salt water

Durability

Specific Gravity

1.98-2.253.26-3.41

1 7.18

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Fracture

Conchoidal

Fibrous, ConchoidalWalter Schumann

Cleavage

None

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

Mohs Hardness

5-6.57-8.5

2 10

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Chemical Composition

SiO₂ · nH₂O

AlAl₆O₃BSi₃O₁₈

Optical Properties

Luster

Vitreous, Pearly

Vitreous

Pleochroism

None

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

Transparent, Translucent, Transparent to translucent

Translucent, Translucent to opaque

Refractive Index

1.37-1.521.669-1.723

1 3.25

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Optic Character

Crystal System

Trigonal

Orthorhombic

Birefringence

-99990.011-0.037

0 0.296

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Clarity

Transparent

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Patience

Healing

Emotional healing

Qualities Associated

Creativity

Patience

Opal Vs Dumortierite Fracture

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

Compare Semi Precious Gemstones

Opal Vs Schorlomite

Opal Vs Simpsonite

Opal Vs Spessartine

Opal Vs Dumortierite Luster

A primary knowledge about Opal 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. Opal exhibits Vitreous and Pearly luster. Dumortierite, on other hand, exhibits Vitreous luster.