Oil shale

Argillite

Oil shale and Argillite

Oil shale

Argillite

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Definition

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

Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate

History

Origin

Unknown

Discoverer

Unknown

Etymology

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

From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Family

Group

Not Applicable

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Splintery

Clastic, Polished

Color

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

Dark Grey to Black, Pink, Red, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Muddy

Rough and Dull

Uses

Architecture

Interior Uses

Not Available

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

Not Available

As Building Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Not Available

Curbing, Whetstones

Industry

Construction Industry

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

Used for flooring, stair treads, borders and window sills.

Medical Industry

Not Available

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

An Oil and Gas Reservoir

Fire resistant, Used to manufracture paperweights and bookends

Types

Carbonate-rich Shale, Siliceous Shale and Cannel Shale

Not Available

Features

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

Is one of the oldest rock

Archaeological Significance

Monuments

Not Yet Used

Used

Famous Monuments

Not Applicable

Not Available

Sculpture

Not Yet Used

Used

Famous Sculptures

Not Applicable

Not Available

Pictographs

Not Used

Used

Petroglyphs

Not Used

Used

Figurines

Not Yet Used

Used

Fossils

Present

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.

An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.

Composition

Mineral Content

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

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium

Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Not Applicable

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion

Chemical Erosion

Properties

Physical Properties

Hardness

2-32-3

1 7

👆🏻

Grain Size

Very fine-grained

Fine Grained

Fracture

Not Available

Conchoidal to Uneven

Streak

White

White to Grey

Porosity

Highly Porous

Luster

Dull

Waxy and Dull

Compressive Strength

NANA

0.15 450

👆🏻

Cleavage

Slaty

Toughness

2.6

Specific Gravity

2.2-2.82.56-2.68

0 8.4

👆🏻

Transparency

Opaque

Density

2.4-2.8 g/cm³2.54-2.66 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.39 kJ/Kg K0.87 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Bangladesh, China, India, Russia

Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Europe

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

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

Others

Greenland

Not Available

Deposits in Western Continents

North America

Canada, USA

USA

South America

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

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

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

All about Oil shale and Argillite Properties

Know all about Oil shale and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale and Argillite belong to Sedimentary Rocks.Texture of Oil shale is Splintery whereas that of Argillite is Clastic, Polished. Oil shale appears Muddy and Argillite appears Rough and Dull. The luster of Oil shale is dull while that of Argillite is waxy and dull. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Argillite are fire resistant, used to manufracture paperweights and bookends.