Goethite

Alunite

Goethite Vs Alunite

Goethite

Alunite

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Astrology

Origin

Australia

Australia, Italy

Color

Brown, Reddish, Brownish, Yellow

Yellow, Red, Reddish, Brown, Colorless, White, gray

Streak

Brown, Brownish, Yellow

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

HCl soluble

Soluble

Durability

Specific Gravity

4.27-4.292.6-2.9

1 7.18

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Fracture

Uneven

Conchoidal, Uneven

Cleavage

Perfect {010}

On {0001}, perfect

Mohs Hardness

5-5.53.5-4

2 10

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Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

KAl3(SO4)2(OH)6

Optical Properties

Luster

Adamantine

Vitreous, Pearly

Pleochroism

VisibleArthur Thomas

Dispersion

0.050.02

0.005 1

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Transparency

Refractive Index

2.26-2.3981.572

1 3.25

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Optic Character

Crystal System

Orthorhombic

Trigonal

Birefringence

0.1380.020

0 0.296

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Clarity

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Stability

Healing

Emotional healing

Qualities Associated

Emotional Healing

Stability

Goethite Vs Alunite Fracture

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

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Goethite Vs Alunite Luster

A primary knowledge about Goethite vs Alunite 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. Goethite exhibits Adamantine luster. Alunite, on other hand, exhibits Vitreous and Pearly luster.