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Mudstone
Mudstone

Gossan
Gossan



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Mudstone
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Mudstone vs Gossan

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Definition

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
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.

History

Origin

-
Indonesia

Discoverer

William Smith
Cornish Gossen

Etymology

From the English mud and stone, from low German mudde and stainaz
From Cornish gossen from gos, blood from Old Cornish guit

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Clastic
Rough, Sandy

Color

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow
Brown, Brown- Black, Gold, Green, Rust

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Dull
Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Floor Tiles, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone, Roof Tiles
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

-
-

Antiquity Uses

Sculpture, Small Figurines
Artifacts

Other Uses

Commercial Uses

Creating Artwork, Pottery
Cemetery Markers, Commemorative Tablets, Gemstone

Types

Types

Marl, Shale and Argillite
Translocated gossan and Leakage gossan

Features

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock
Clasts are smooth to touch, Easily splits into thin plates

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

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.
Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.

Composition

Mineral Content

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Sea Erosion
Chemical Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

2-34-5
1 7
👆🏻

Grain Size

Very fine-grained
Fine to Medium Grained

Fracture

-
Conchoidal

Streak

White
White to Grey

Porosity

Highly Porous
Highly Porous

Luster

Dull
Metallic

Compressive Strength

25.00 N/mm2-
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.6
-

Specific Gravity

2.2-2.82.0
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.4-2.8 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.39 kJ/Kg K0.24 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, China, India, Russia
China, India, Indonesia, Russia, Singapore, South Korea

Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa

Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Albania, France, Germany, Great Britain, United Kingdom

Others

-
-

Deposits in Western Continents

North America

USA
Canada, USA

South America

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

Deposits in Oceania Continent

Australia

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

Mudstone vs Gossan Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Mudstone and Gossan Reserves. 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. Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Mudstone vs Gossan information and Mudstone vs Gossan characteristics in the upcoming sections.

Mudstone vs Gossan Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Mudstone vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Mudstone and Properties of Gossan. Learn more about Mudstone vs Gossan in the next section. The interior uses of Mudstone include Decorative aggregates, Entryways, Floor tiles and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Mudstone and Gossan, they have various applications in construction industry. The uses of Mudstone in construction industry include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Mudstone and Gossan

Here you can know more about Mudstone and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Mudstone and Gossan consists of mineral content and compound content. The mineral content of Mudstone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz and mineral content of Gossan includes Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon. You can also check out the list of all Sedimentary Rocks. When we have to compare Mudstone vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Mudstone is Rough and Dull and that of Gossan is Dull and Banded. Properties of rock is another aspect for Mudstone vs Gossan. The hardness of Mudstone is 2-3 and that of Gossan is 4-5. The types of Mudstone are Marl, Shale and Argillite whereas types of Gossan are Translocated gossan and Leakage gossan. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Mudstone is white while that of Gossan is white to grey. The specific heat capacity of Mudstone is 0.39 kJ/Kg K and that of Gossan is 0.24 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Mudstone is heat resistant, impact resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.