Nepheline

Andalusite

Nepheline Vs Andalusite

Nepheline

Andalusite

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Astrology

Origin

Canada

Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)

Color

White, Reddish, gray, Brown, Brownish

Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red

Streak

White

For which Rashi?

Planet

Venus

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

2.55-2.653.05-3.21

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Subconchoidal, Splintery

Cleavage

[1010] Poor

Good on {110}, poor on {100}

Mohs Hardness

5-67.5

2 10

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Chemical Composition

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

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Optical Properties

Luster

Vitreous, Greasy

Pleochroism

strongly trichroic

Dispersion

0.010.02

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.529-1.5471.627-1.650

1 3.25

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Optic Character

Crystal System

Hexagonal

Orthorhombic

Birefringence

0.003-0.0040.009-0.010

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Excellent

Reproductive

Digestive

Psychology

Perception

Healing

Physical healing

Qualities Associated

Clarity

Self-Realization

Nepheline Vs Andalusite Fracture

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

Compare Red Gemstones

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Nepheline Vs Andalusite Luster

A primary knowledge about Nepheline vs Andalusite 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. Andalusite, on other hand, exhibits Vitreous and Greasy luster.