Hematite

Sillimanite

Hematite Vs Sillimanite

Hematite

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

Black, Reddish, gray, Red

Blue, Green, Brownish, Greenish, Colorless, gray

1.3 Streak

Black, Brown, Reddish, Red

White

1.4 For which Rashi?

Aries, Aquarius, Aries, Aquarius, Aries, Aquarius

Not Available

1.5 Planet

Saturn

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

Projective

Not Available

1.9 Deities

Mars

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Healing

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

Tough

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

5.00-5.303.20-3.26

1 7.18

2.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Splintery

2.6 Cleavage

None, may show partings on {0001} and {10 1 1}

{010} perfect

2.7 Mohs Hardness

66-7.5

2 10

2.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

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

3 Optical Properties

3.1 Luster

Not Available

Vitreous, Subadamantine, Silky

3.2 Pleochroism

O = brownish red; E = yellowish red

Colourless to pale brown to yellow

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

Transparent, Translucent

3.5 Refractive Index

2.690-3.2201.653-1.685

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

Orthorhombic

3.8 Birefringence

0.2800.020-0.022

0 0.296

3.9 Clarity

OpaqueHerve Nicolas Lazzarelli

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

Hematite Vs Sillimanite Fracture

Fracture is an important parameter when you compare Hematite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hematite 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 Hematite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven. Sillimanite fracture is Splintery.

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Hematite Vs Sillimanite Luster

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