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Shale
Shale

Coquina
Coquina



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Shale vs Coquina

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1 Definition
1.1 Definition
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles
Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates
1.2 History
1.2.1 Origin
Unknown
European Foreland Basins
1.2.2 Discoverer
Unknown
Unknown
1.3 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 Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)
1.4 Class
Sedimentary Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Clastic, Splintery
Clastic
2.2 Color
Black, Brown, Buff, Green, Grey, Red, Yellow
Beige, Buff, Orange
2.3 Maintenance
More
More
2.4 Durability
Durable
Non-Durable
2.4.1 Water Resistant
59% Sedimentary Rocks Rocks have it !
59% Sedimentary Rocks Rocks have it !
2.4.2 Scratch Resistant
62% Sedimentary Rocks Rocks have it !
62% Sedimentary Rocks Rocks have it !
2.4.3 Stain Resistant
43% Sedimentary Rocks Rocks have it !
43% Sedimentary Rocks Rocks have it !
2.4.4 Wind Resistant
38% Sedimentary Rocks Rocks have it !
38% Sedimentary Rocks Rocks have it !
2.4.5 Acid Resistant
22% Sedimentary Rocks Rocks have it !
22% Sedimentary Rocks Rocks have it !
2.5 Appearance
Muddy
Layered, Banded, Veined and Shiny
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Hotels, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Office Buildings
Garden Decoration, Office Buildings
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
Building houses or walls, Construction Aggregate
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Pottery
Creating Artwork
4 Types
4.1 Types
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Not Available
4.2 Features
Easily splits into thin plates, Generally rough to touch, Very fine grained rock
Available in Lots of Colors and Patterns, Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Jantar Mantar in India
Data Not Available
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Used
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Present
Present
5 Formation
5.1 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.
Coquina is a sedimentary rock which is formed when billions of small clam-like seashell, called Coquina, or cockleshell are die and hence are deposited, buried and turns into a rock when pressure is applied.
5.2 Composition
5.2.1 Mineral Content
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides
Apatite, Augite, Bronzite, Calcite, Chert, Chlorite, Clay Minerals, Epidote, Feldspar, Garnet, Micas, Muscovite or Illite
5.2.2 Compound Content
Ca, Fe, Mg, Silicon Dioxide, Sodium
CaO, Carbon Dioxide, Iron(III) Oxide, MgO
5.3 Transformation
5.3.1 Metamorphism
19% Sedimentary Rocks Rocks have it !
19% Sedimentary Rocks Rocks have it !
5.3.2 Types of Metamorphism
Not Applicable
Not Applicable
5.3.3 Weathering
78% Sedimentary Rocks Rocks have it !
78% Sedimentary Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
86% Sedimentary Rocks Rocks have it !
86% Sedimentary Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3
1-2
6.1.2 Grain Size
Very fine-grained
Coarse Grained
6.1.3 Fracture
Not Available
Irregular
6.1.4 Streak
White
White
6.1.5 Porosity
Highly Porous
Highly Porous
6.1.6 Luster
Dull
Dull to Vitreous to Submetallic
6.1.7 Compressive Strength
Flint
95.00 N/mm2
Rank: 20 (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
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6.1.8 Cleavage
Slaty
Not Available
6.1.9 Toughness
2.6
Not Available
6.1.10 Specific Gravity
2.2-2.8
1.10-2.24
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.4-2.8 g/cm3
2.8-2.9 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.39 kJ/Kg K
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Granulite
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6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Bangladesh, China, India, Russia
Not Yet Found
7.1.2 Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Not Yet Found
7.1.3 Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
United Kingdom
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
USA
USA
7.2.2 South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Not Yet Found
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Not Yet Found

Shale vs Coquina 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 Coquina Reserves. Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. 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 Coquina information and Shale vs Coquina characteristics in the upcoming sections.

Shale vs Coquina 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 Coquina characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shale and Properties of Coquina. Learn more about Shale vs Coquina in the next section. The interior uses of Shale include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Coquina include Decorative aggregates, Homes, Hotels and Interior decoration. Due to some exceptional properties of Shale and Coquina, 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 Coquina include Building houses or walls, Construction aggregate.

More about Shale and Coquina

Here you can know more about Shale and Coquina. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shale and Coquina 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 Coquina includes Apatite, Augite, Bronzite, Calcite, Chert, Chlorite, Clay Minerals, Epidote, Feldspar, Garnet, Micas, Muscovite or Illite. You can also check out the list of all Sedimentary Rocks. When we have to compare Shale vs Coquina, 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, Coquina is available in beige, buff, orange colors. Appearance of Shale is Muddy and that of Coquina is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Shale vs Coquina. The hardness of Shale is 3 and that of Coquina is 1-2. The types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale whereas types of Coquina are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Shale and Coquina is white. The specific heat capacity of Shale is 0.39 kJ/Kg K and that of Coquina is Not Available. 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 Coquina is heat resistant, impact resistant, pressure resistant, wear resistant.