Goethite

Sillimanite

Goethite Vs Sillimanite

Goethite

Sillimanite

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1 Astrology

1.1 Origin

Australia

USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil

1.2 Color

Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow

Blue, Green, Brownish, Greenish, Colorless, gray

1.3 Streak

Brown, Brownish, Yellow

White

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

Tough

2.2 Solubility

HCl soluble

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.27-4.293.20-3.26

1 7.18

2.5 Fracture

Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).

Splintery

2.6 Cleavage

Perfect {010}

{010} perfect

2.7 Mohs Hardness

5-5.56-7.5

2 10

2.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

3 Optical Properties

3.1 Luster

Adamantine

Vitreous, Subadamantine, Silky

3.2 Pleochroism

VisibleArthur Thomas

Colourless to pale brown to yellow

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemstones (2009)

Transparent, Translucent

3.5 Refractive Index

2.26-2.3981.653-1.685

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

3.8 Birefringence

0.1380.020-0.022

0 0.296

3.9 Clarity

Gemstones (2009)

Transparent

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Goethite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Goethite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Goethite Vs Sillimanite 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 (e.g. fractured metals)., (e.g. fractured metals)., Gemstones (2009), torn surfaces, torn surfaces, Uneven and Uneven. Sillimanite fracture is Splintery.

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Goethite Vs Sillimanite Luster

A primary knowledge about Goethite vs Sillimanite 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. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.