Oligoclase

Sillimanite

Oligoclase Vs Sillimanite

Oligoclase

Sillimanite

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1 Astrology

1.1 Origin

Southern and central Africa

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

1.2 Color

Colorless, Brown, Greenish, gray

Blue, Green, Brownish, Greenish, Colorless, gray

1.3 Streak

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

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.62-2.673.20-3.26

1 7.18

2.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

Splintery

2.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

{010} perfect

2.7 Mohs Hardness

6-6.56-7.5

2 10

2.8 Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

3 Optical Properties

3.1 Luster

Vitreous

Vitreous, Subadamantine, Silky

3.2 Pleochroism

Not Available

Colourless to pale brown to yellow

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Gemmological Tables (2004)

Transparent, Translucent

3.5 Refractive Index

1.538-1.5501.653-1.685

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

Orthorhombic

3.8 Birefringence

0.0100.020-0.022

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

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

Oligoclase Vs Sillimanite Fracture

Fracture is an important parameter when you compare Oligoclase and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Oligoclase 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 Oligoclase is Gems, Gems, Sixth Edition (2006), Sixth Edition (2006) and Uneven. Sillimanite fracture is Splintery.

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Oligoclase Vs Sillimanite Luster

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