Precious Opal

Gypsum

Precious Opal Vs Gypsum

Precious Opal

Gypsum

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Astrology

Origin

Australia

Mexico

Color

Yellow, Green, Blue

Colorless, White, Greenish, Brown

Streak

White

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

Flexible

Solubility

Soluble

Durability

Specific Gravity

1.98-2.252.20-2.40

1 7.18

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Fracture

Conchoidal

Conchoidal, Splintery, Fibrous

Cleavage

None

Perfect on {010}, distinct on {100}

Mohs Hardness

5-6.52

2 10

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Chemical Composition

SiO 2 · nH 2OGemdat.org , Management Team (2012)

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Optical Properties

Luster

Vitreous, Silky, Pearly, Waxy

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.370-1.4701.521-1.531

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

-99990.010

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Harmony

Healing

Emotional healing

Qualities Associated

Creativity

Harmony

Precious Opal Vs Gypsum Fracture

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

Compare Blue Gemstones

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Precious Opal Vs Sardonyx

Precious Opal Vs Scorzalite

Precious Opal Vs Gypsum Luster

A primary knowledge about Precious Opal vs Gypsum 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. Gypsum, on other hand, exhibits Vitreous, Silky, Pearly and Waxy luster.