Amethyst

Common Opal

Amethyst Vs Common Opal

Amethyst

Common Opal

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Astrology

Origin

USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil

Southern and central Africa

Color

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

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

Streak

White

For which Rashi?

Pisces, Scorpio, Sagittarius

Planet

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Diana

Not to wear with

Powers

Love, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

insoluble in common solvents

Durability

Specific Gravity

2.651.98-2.50

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Conchoidal

Cleavage

Indiscernible

None

Mohs Hardness

75.5-6.5

2 10

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Chemical Composition

SiO₂

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

Optical Properties

Luster

Vitreous

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Transparent to translucent

Translucent

Refractive Index

1.544-1.5531.37-1.52

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

0.009-9999

0 0.296

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Clarity

Transparent

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Supports reproductive health

Digestive

Supports digestive health

Psychology

Calming

Creativity

Healing

Emotional healing

Qualities Associated

Spirituality

Creativity

Amethyst Vs Common Opal Fracture

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

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Amethyst Vs Common Opal Luster

A primary knowledge about Amethyst vs Common Opal 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. Amethyst exhibits Vitreous luster.