Nepheline

Sellaite

Nepheline Vs Sellaite

Nepheline

Sellaite

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Astrology

Origin

Canada

Brazil

Color

White, Reddish, gray, Brown, Brownish

Colorless, White

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

Brittle

Solubility

Durability

Specific Gravity

2.55-2.653.14-3.16

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

[1010] Poor

Perfect on {010} and {110}

Mohs Hardness

5-65-5.5

2 10

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Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Greasy

Vitreous

Pleochroism

Dispersion

0.010.03

0.005 1

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Transparency

Transparent, Translucent

Transparent

Refractive Index

1.529-1.5471.378-1.390

1 3.25

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Optic Character

Crystal System

Hexagonal

tetragonal

Birefringence

0.003-0.0040.012

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Reproductive

Digestive

Psychology

Healing

Qualities Associated

Clarity

Emotional Healing

Nepheline Vs Sellaite Fracture

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

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Nepheline Vs Sellaite Luster

A primary knowledge about Nepheline vs Sellaite 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. Sellaite, on other hand, exhibits Vitreous luster.