Common Opal

Gahnospinel

Common Opal Vs Gahnospinel

Common Opal

Gahnospinel

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Astrology

Origin

Southern and central Africa

Sri Lanka

Color

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

Blue

Streak

For which Rashi?

Sagittarius, Scorpio

Planet

Pluto

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Hephaestus

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

1.98-2.503.65-4.55

1 7.18

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Fracture

Conchoidal

Cleavage

None

None, but may exhibit slight parting

Mohs Hardness

5.5-6.57.5-8

2 10

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Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Optical Properties

Luster

Vitreous

Pleochroism

Dispersion

0.010.02

0.005 1

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Transparency

Translucent

Refractive Index

1.37-1.521.735-1.790

1 3.25

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Optic Character

Crystal System

Isometric

Birefringence

-9999-9999

0 0.296

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Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Empowerment

Healing

Emotional healing

Qualities Associated

Creativity

Transformation

Common Opal Vs Gahnospinel Fracture

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

Compare Blue Gemstones

Common Opal Vs Elbaite

Common Opal Vs Falcons Eye

Common Opal Vs Fluorapatite

Common Opal Vs Gahnospinel Luster

A primary knowledge about Common Opal vs Gahnospinel 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. Gahnospinel, on other hand, exhibits Vitreous luster.