Common Opal

Coral

Common Opal Vs Coral

Common Opal

Coral

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Astrology

Origin

Southern and central Africa

Color

White, Colorless, Blue, Red, Green, Yellow, Violet

White, Blue

Streak

For which Rashi?

Pisces

Planet

Neptune

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Venus

Not to wear with

Powers

Healing, Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

1.98-2.502.60-2.70

1 7.18

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Fracture

Conchoidal

Irregular

Cleavage

None

Mohs Hardness

5.5-6.53-4

2 10

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Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

CaCO 3Ulrich Henn and Claudio C.

Optical Properties

Luster

Pleochroism

Dispersion

0.010.03

0.005 1

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Transparency

Translucent

Refractive Index

1.37-1.521.486-1.658

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

-99990.160-0.172

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Cardiovascular

Enhances intuition and psychic abilities

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Emotional balance

Healing

Emotional healing

Qualities Associated

Creativity

Emotional Balance

Common Opal Vs Coral Fracture

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

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Common Opal Vs Coral Luster

A primary knowledge about Common Opal vs Coral 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.