Gypsum

Common Opal

Gypsum Vs Common Opal

Gypsum

Common Opal

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Astrology

Origin

Mexico

Southern and central Africa

Color

Colorless, White, Greenish, Brown

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

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

2.20-2.401.98-2.50

1 7.18

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Fracture

Conchoidal, Splintery, Fibrous

Conchoidal

Cleavage

Perfect on {010}, distinct on {100}

None

Mohs Hardness

25.5-6.5

2 10

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Chemical Composition

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

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

Optical Properties

Luster

Vitreous, Silky, Pearly, Waxy

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent

Translucent

Refractive Index

1.521-1.5311.37-1.52

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

0.010-9999

0 0.296

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Clarity

Transparent

Translucent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Harmony

Creativity

Healing

Emotional healing

Qualities Associated

Harmony

Creativity

Gypsum Vs Common Opal Fracture

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

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Gypsum Vs Common Opal Luster

A primary knowledge about Gypsum 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. Gypsum exhibits Vitreous, Silky, Pearly and Waxy luster.