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Shale
Shale

Gossan
Gossan



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Shale vs Gossan

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Definition

Definition

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

Johann Gottlob Lehmann
Cornish Gossen

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 Cornish gossen from gos, blood from Old Cornish guit

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness 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, Splintery
Rough, Sandy

Color

Black, Brown, Buff, Green, Grey, Red, Yellow
Brown, Brown- Black, Gold, Green, Rust

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Muddy
Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings
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

Artifacts, Sculpture
Artifacts

Other Uses

Commercial Uses

Creating Artwork, Pottery
Cemetery Markers, Commemorative Tablets, Gemstone

Types

Types

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Translocated gossan and Leakage gossan

Features

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

Archaeological Significance

Monuments

-
-

Famous Monuments

Jantar Mantar in India
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

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.
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

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

Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

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

95.00 N/mm2-
0.15 450
👆🏻

Cleavage

Slaty
-

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

Shale 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 Shale and Gossan Reserves. Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. 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 Shale vs Gossan information and Shale vs Gossan characteristics in the upcoming sections.

Shale 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. Shale vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shale and Properties of Gossan. Learn more about Shale vs Gossan in the next section. The interior uses of Shale include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Shale and Gossan, they have various applications in construction industry. The uses of Shale 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 Shale and Gossan

Here you can know more about Shale and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shale and Gossan consists of mineral content and compound content. The mineral content of Shale includes Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides 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 Shale vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Shale is Muddy and that of Gossan is Dull and Banded. Properties of rock is another aspect for Shale vs Gossan. The hardness of Shale is 3 and that of Gossan is 4-5. The types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale 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 Shale is white while that of Gossan is white to grey. The specific heat capacity of Shale 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.Shale is heat resistant, impact resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.