Common Opal

Povondraite

Common Opal Vs Povondraite

Common Opal

Povondraite

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Astrology

Origin

Southern and central Africa

Color

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

Brownish, Black

Streak

Brown

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

1.98-2.503.26

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

None

Mohs Hardness

5.5-6.5-9999

2 10

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Chemical Composition

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

NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Optical Properties

Luster

Resinous

Pleochroism

Strong: yellow-brown

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Refractive Index

1.37-1.52-9999

1 3.25

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Optic Character

Crystal System

Birefringence

-9999-9999

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Healing

Emotional healing

Qualities Associated

Creativity

Protection

Common Opal Vs Povondraite Fracture

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

Compare Blue Gemstones

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Common Opal Vs Povondraite Luster

A primary knowledge about Common Opal vs Povondraite 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. Povondraite, on other hand, exhibits Resinous luster.