Nepheline

Biotite

Nepheline Vs Biotite

Nepheline

Biotite

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Astrology

Origin

Canada

Color

White, Reddish, gray, Brown, Brownish

Brown, Yellow, White, Greenish

Streak

White

White, gray

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

2.55-2.652.7-3.3

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Even

Cleavage

[1010] Poor

Perfect on the {001}

Mohs Hardness

5-62.5-3.0

2 10

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Chemical Composition

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

K(Mg,Fe++)3[AlSi3O10(OH,F)2

Optical Properties

Luster

Vitreous, Greasy

Vitreous, Pearly

Pleochroism

Strong

Dispersion

0.01-

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.529-1.5471.565-1.625

1 3.25

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Optic Character

Crystal System

Hexagonal

monoclinic

Birefringence

0.003-0.0040.03-0.07

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Grounding

Healing

Emotional healing

Qualities Associated

Clarity

Grounding

Nepheline Vs Biotite Fracture

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

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Nepheline Vs Biotite Luster

A primary knowledge about Nepheline vs Biotite 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. Biotite, on other hand, exhibits Vitreous and Pearly luster.