Nepheline

Franklinite

Nepheline Vs Franklinite

Nepheline

Franklinite

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Astrology

Origin

Canada

USA

Color

White, Reddish, gray, Brown, Brownish

Brown, Red, Black, Brownish

Streak

White

Reddish, Brown

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

Solubility

Durability

Specific Gravity

2.55-2.655.05-5.22

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven

Cleavage

[1010] Poor

None

Mohs Hardness

5-65.5-6

2 10

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Chemical Composition

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

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Greasy

Pleochroism

Dispersion

0.010.19

0.005 1

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Transparency

Transparent, Translucent

Translucent

Refractive Index

1.529-1.547-9999

1 3.25

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Optic Character

Crystal System

Hexagonal

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

Birefringence

0.003-0.004-9999

0 0.296

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Clarity

Transparent

Translucent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Reproductive

Digestive

Psychology

Creativity

Healing

Qualities Associated

Clarity

Grounding

Nepheline Vs Franklinite Fracture

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

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Nepheline Vs Franklinite Luster

A primary knowledge about Nepheline vs Franklinite 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.