Oil shale

Obsidian

Oil shale and Obsidian

Oil shale

Obsidian

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1 Definition

1.1 Definition

Oil Shale is a fine-grained sedimentary rock from which oil is extracted

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth

1.2 History

1.2.1 Origin

Unknown

Ethiopia

1.2.2 Discoverer

Unknown

Obsius

1.3 Etymology

From Old English scealu in its base sense of thing that divides or separate

From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius

1.4 Class

Sedimentary Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Opaque Rock

2 Texture

2.1 Texture

Splintery

Glassy

2.2 Color

Black, Brown, Buff, Green, Grey, Red, Yellow

Black, Blue, Brown, Green, Orange, Red, Tan, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Muddy

Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Not Yet Used

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

Not Yet Used

Garden Decoration

3.1.3 Other Architectural Uses

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Serves as an Oil and Gas Reservoir rock

Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points

3.2.2 Medical Industry

Not Yet Used

Surgery

3.3 Antiquity Uses

Artifacts

Artifacts, Jewellery

3.4 Other Uses

3.4.1 Commercial Uses

An Oil and Gas Reservoir

Creating Artwork, Mirror, Used in aquariums

4 Types

4.1 Types

Carbonate-rich Shale, Siliceous Shale and Cannel Shale

Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian

4.2 Features

Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock, Very fine grained rock

Blocks negativity, Helps to protect against depression

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Not Yet Used

4.3.4 Famous Sculptures

Not Applicable

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Not Yet Used

4.4 Fossils

Present

Absent

5 Formation

5.1 Formation

Oil Shale forms on the beds of seas and lakes and its formation starts with the organic debris settling and accumulating at the bottom of a lake or sea which are then transformed into rock with the help of high temperature and pressure.

When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.

5.2 Composition

5.2.1 Mineral Content

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides

Not Available

5.2.2 Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

2-35-5.5

1 7

6.1.2 Grain Size

Very fine-grained

Not Applicable

6.1.3 Fracture

Not Available

Conchoidal

6.1.4 Streak

White

6.1.5 Porosity

Highly Porous

Very Less Porous

6.1.6 Luster

Dull

Vitreous

6.1.7 Compressive Strength

NA0.15 N/mm²

0.15 450

6.1.8 Cleavage

Slaty

Non-Existent

6.1.9 Toughness

2.6

Not Available

6.1.10 Specific Gravity

2.2-2.82.6-2.7

0 8.4

6.1.11 Transparency

Opaque

Translucent

6.1.12 Density

2.4-2.8 g/cm³2.6 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.39 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey

Afghanistan, Indonesia, Japan, Russia

7.1.2 Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Kenya

7.1.3 Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Sweden, Switzerland

Greece, Hungary, Iceland, Italy, Turkey

7.1.4 Others

Greenland, Not Yet Found

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

Canada, Mexico, USA

7.2.2 South America

Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela

Argentina, Chile, Ecuador, Peru

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia

New Zealand

All about Oil shale and Obsidian Properties

Know all about Oil shale and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Obsidian belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Obsidian is Glassy. Oil shale appears Muddy and Obsidian appears Shiny. The luster of Oil shale is dull while that of Obsidian is vitreous. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Obsidian are creating artwork, mirror, used in aquariums.