Nepheline

Gypsum

Nepheline Vs Gypsum

Nepheline

Gypsum

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Astrology

Origin

Canada

Mexico

Color

White, Reddish, gray, Brown, Brownish

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

2.55-2.652.20-2.40

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal, Splintery, Fibrous

Cleavage

[1010] Poor

Perfect on {010}, distinct on {100}

Mohs Hardness

5-62

2 10

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Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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

Optical Properties

Luster

Vitreous, Greasy

Vitreous, Silky, Pearly, Waxy

Pleochroism

None

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.529-1.5471.521-1.531

1 3.25

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Optic Character

Crystal System

Hexagonal

monoclinic

Birefringence

0.003-0.0040.010

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Harmony

Healing

Emotional healing

Qualities Associated

Clarity

Harmony

Nepheline Vs Gypsum Fracture

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

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Nepheline Vs Gypsum Luster

A primary knowledge about Nepheline 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. Nepheline exhibits Vitreous and Greasy luster. Gypsum, on other hand, exhibits Vitreous, Silky, Pearly and Waxy luster.