Shale

Pyroxenite

Shale and Pyroxenite

Shale

Pyroxenite

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1 Definition

1.2 Definition

Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles

Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine

1.3 History

1.3.2 Origin

Unknown

1.4.1 Discoverer

Unknown

1.6 Etymology

From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,

From pyro- fire + Greek xenos stranger as the mineral group was new to igneous rocks

1.7 Class

Sedimentary Rocks

Igneous Rocks

1.8.2 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.10 Family

1.10.1 Group

Not Applicable

Plutonic

2.2 Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

3 Texture

3.1 Texture

Clastic, Splintery

Clastic, Granular, Phaneritic, Porphyritic

3.3 Color

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

Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey

3.5 Maintenance

Less

3.6 Durability

Durable

3.6.1 Water Resistant

✔ ✘

59% Sedimentary Rocks Rocks have it !

✔ ✘

81% Igneous Rocks Rocks have it !

3.6.3 Scratch Resistant

✔ ✘

62% Sedimentary Rocks Rocks have it !

✔ ✘

86% Igneous Rocks Rocks have it !

3.6.5 Stain Resistant

✔ ✘

43% Sedimentary Rocks Rocks have it !

✔ ✘

66% Igneous Rocks Rocks have it !

3.6.7 Wind Resistant

✔ ✘

38% Sedimentary Rocks Rocks have it !

✔ ✘

49% Igneous Rocks Rocks have it !

3.6.9 Acid Resistant

✔ ✘

22% Sedimentary Rocks Rocks have it !

✔ ✘

48% Igneous Rocks Rocks have it !

4.2 Appearance

Muddy

Layered, Banded, Veined and Shiny

5 Uses

5.1 Architecture

5.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Countertops, Decorative Aggregates, Interior Decoration, Kitchens

5.1.3 Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

As Building Stone, As Facing Stone

5.2.2 Other Architectural Uses

Curbing

5.3 Industry

5.3.1 Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

5.4.1 Medical Industry

Not Yet Used

5.6 Antiquity Uses

Artifacts, Sculpture

Artifacts

6.2 Other Uses

6.2.1 Commercial Uses

Creating Artwork, Pottery

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

7 Types

7.2 Types

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale

Clinopyroxenites, Orthopyroxenites and Websterites

7.3 Features

Easily splits into thin plates, Generally rough to touch, Very fine grained rock

Generally rough to touch, Host rock for Diamond, Is one of the oldest rock

7.4 Archaeological Significance

7.4.1 Monuments

Used

Not Yet Used

7.4.3 Famous Monuments

Jantar Mantar in India

Not Applicable

7.4.5 Sculpture

Used

Not Yet Used

7.4.7 Famous Sculptures

Data Not Available

Not Applicable

7.4.9 Pictographs

Used

Not Used

7.4.11 Petroglyphs

Used

Not Used

7.5.1 Figurines

Used

Not Yet Used

8.2 Fossils

Present

Absent

9 Formation

9.1 Formation

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.

Pyroxenites are ultramafic igneous rocks which are made up of minerals of the pyroxene group, such as augite and diopside, hypersthene, bronzite or enstatite.

9.2 Composition

9.2.1 Mineral Content

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

Amphibole, Augite, Bronzite, Chromite, Diopside, Enstatite, Garnet, Hornblende, Hypersthene, Magnetite, Pyroxene

9.3.2 Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

9.4 Transformation

9.4.1 Metamorphism

✔ ✘

19% Sedimentary Rocks Rocks have it !

✔ ✘

97% Igneous Rocks Rocks have it !

9.4.4 Types of Metamorphism

Not Applicable

Burial Metamorphism, Impact Metamorphism, Regional Metamorphism

9.4.5 Weathering

✔ ✘

78% Sedimentary Rocks Rocks have it !

✔ ✘

99% Igneous Rocks Rocks have it !

9.4.7 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

9.4.9 Erosion

✔ ✘

86% Sedimentary Rocks Rocks have it !

✔ ✘

92% Igneous Rocks Rocks have it !

10.1.1 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

11 Properties

11.1 Physical Properties

11.1.1 Hardness

11.1.4 Grain Size

Very fine-grained

Coarse Grained

11.1.6 Fracture

Not Available

Uneven

11.1.8 Streak

White

White, Greenish White or Grey

11.1.11 Porosity

Highly Porous

Less Porous

11.1.12 Luster

Dull

Dull to Vitreous to Submetallic

11.1.13 Compressive Strength

What Is Flint

⊕

▶

▼

95.00 N/mm²

Rank: 20 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Obsidian

⊕

▶

175 (What Is Grani..)

◀ ▶ ADD ⊕

11.1.16 Cleavage

Slaty

Irregular

11.1.18 Toughness

2.6

Not Available

11.1.19 Specific Gravity

2.2-2.8

3.2-3.5

11.1.22 Transparency

Opaque

11.1.23 Density

2.4-2.8 g/cm³

3.1-3.6 g/cm³

11.3 Thermal Properties

11.3.1 Specific Heat Capacity

What Is Banded ..

⊕

▶

▼

0.39 kJ/Kg K

Rank: 23 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Granulite

⊕

▶

1.09 (What Is Trave..)

◀ ▶ ADD ⊕

11.3.2 Resistance

Heat Resistant, Impact Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

12 Reserves

12.1 Deposits in Eastern Continents

12.1.1 Asia

Bangladesh, China, India, Russia

India, Russia

12.1.2 Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

South Africa

12.1.3 Europe

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

Germany, Greece, Italy, Scotland, Turkey

12.1.4 Others

Not Yet Found

Greenland

12.2 Deposits in Western Continents

12.2.1 North America

USA

Canada, USA

13.1.2 South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil, Colombia, Venezuela

13.2 Deposits in Oceania Continent

13.2.1 Australia

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

New Zealand, Queensland

All about Shale and Pyroxenite Properties

Know all about Shale and Pyroxenite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Pyroxenite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Pyroxenite is Clastic, Granular, Phaneritic, Porphyritic. Shale appears Muddy and Pyroxenite appears Layered, Banded, Veined and Shiny. The luster of Shale is dull while that of Pyroxenite is dull to vitreous to submetallic. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Pyroxenite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Shale are creating artwork, pottery and that of Pyroxenite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.