Mudstone

Shoshonite

Mudstone and Shoshonite

Mudstone

Shoshonite

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Definition

Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass

History

Origin

Wyoming,USA

Discoverer

William Smith

Iddings

Etymology

From the English mud and stone, from low German mudde and stainaz

From the place of origin called Shoshone riverin Wyoming

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Clastic

Porphyritic

Color

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow

Brown- Black, Dark Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Floor Tiles, Interior Decoration

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone, Roof Tiles

As Building Stone, As Facing Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

Antiquity Uses

Sculpture, Small Figurines

Sculpture

Other Uses

Commercial Uses

Creating Artwork, Pottery

Cemetery Markers, Creating Artwork

Types

Marl, Shale and Argillite

Intermediate volcanic rock

Features

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock

Has High structural resistance against erosion and climate, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

Mudstone forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are buried and compacted by overlying sediment hence forming mudstone.

Shoshonite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

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

Pyroxene

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

Aluminium Oxide, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

2-36

1 7

👆🏻

Grain Size

Very fine-grained

Medium to Fine Coarse Grained

Fracture

Uneven

Streak

White

White to Grey

Porosity

Highly Porous

Less Porous

Luster

Dull

Compressive Strength

25.00 N/mm²175.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.6

1.6

Specific Gravity

2.2-2.82.98

0 8.4

👆🏻

Transparency

Opaque

Density

2.4-2.8 g/cm³2.9-3 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.39 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, China, India, Russia

India, Russia

Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

South Africa

Europe

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

Iceland

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil

Deposits in Oceania Continent

Australia

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

All about Mudstone and Shoshonite Properties

Know all about Mudstone and Shoshonite properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone belongs to Sedimentary Rocks while Shoshonite belongs to Igneous Rocks.Texture of Mudstone is Clastic whereas that of Shoshonite is Porphyritic. Mudstone appears Rough and Dull and Shoshonite appears Dull. The luster of Mudstone and Shoshonite is dull. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Shoshonite is available in brown- black, dark brown colors. The commercial uses of Mudstone are creating artwork, pottery and that of Shoshonite are cemetery markers, creating artwork.