Definition
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
  
Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix
  
History
  
  
Origin
European Foreland Basins
  
Swiss Alps, Europe
  
Discoverer
Unknown
  
Michael Tellinger
  
Etymology
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)
  
From the Italian word cataclasi
  
Class
Sedimentary Rocks
  
Metamorphic Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Not Applicable
  
Not Applicable
  
Other Categories
Coarse Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Clastic
  
Clastic
  
Color
Beige, Buff, Orange
  
Brown, Green, White, Yellow
  
Maintenance
More
  
Less
  
Durability
Non-Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
No
  
No
  
Stain Resistant
No
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
No
  
No
  
Appearance
Layered, Banded, Veined and Shiny
  
Dull and Banded
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Homes, Hotels, Interior Decoration
  
Decorative Aggregates, Homes
  
Exterior Uses
Garden Decoration, Office Buildings
  
As Building Stone, As Facing Stone, Paving Stone
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
Building houses or walls, Construction Aggregate
  
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
  
Artifacts
  
Other Uses
  
  
Commercial Uses
Creating Artwork
  
Commemorative Tablets, Creating Artwork
  
Types
Not Available
  
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite
  
Features
Available in Lots of Colors and Patterns, Is one of the oldest rock
  
Easily splits into thin plates, Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Used
  
Not Yet Used
  
Famous Monuments
Data Not Available
  
Not Applicable
  
Sculpture
Used
  
Not Yet Used
  
Famous Sculptures
Data Not Available
  
Not Applicable
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Not Yet Used
  
Fossils
Present
  
Absent
  
Formation
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.
  
Cataclasiste rocks mainly form by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
  
Composition
  
  
Mineral Content
Apatite, Augite, Bronzite, Calcite, Chert, Chlorite, Clay Minerals, Epidote, Feldspar, Garnet, Micas, Muscovite or Illite
  
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz
  
Compound Content
CaO, Carbon Dioxide, Iron(III) Oxide, MgO
  
Silicon Dioxide
  
Transformation
  
  
Metamorphism
No
  
No
  
Types of Metamorphism
Not Applicable
  
Not Applicable
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion
  
Coastal Erosion, Wind Erosion
  
Physical Properties
  
  
Hardness
1-2
  
3-4
  
Grain Size
Coarse Grained
  
Fine Grained
  
Fracture
Irregular
  
NA
  
Streak
White
  
Black
  
Porosity
Highly Porous
  
Less Porous
  
Luster
Dull to Vitreous to Submetallic
  
Vitreous
  
Cleavage
Not Available
  
Not Available
  
Toughness
Not Available
  
Not Available
  
Specific Gravity
1.10-2.24
  
2.1
  
Transparency
Opaque
  
Translucent to Opaque
  
Density
2.8-2.9 g/cm3
  
2.9-3.1 g/cm3
  
Thermal Properties
  
  
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Heat Resistant, Impact Resistant, Pressure Resistant
  
Deposits in Eastern Continents
  
  
Asia
Not Yet Found
  
China, India, Russia, Saudi Arabia, South Korea
  
Africa
Not Yet Found
  
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
  
Europe
United Kingdom
  
England, Finland, France, Spain, United Kingdom
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Not Yet Found
  
Argentina, Colombia
  
Deposits in Oceania Continent
  
  
Australia
Not Yet Found
  
Central Australia, Western Australia
  
Coquina vs Cataclasite 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. Coquina vs Cataclasite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Coquina and Properties of Cataclasite. Learn more about Coquina vs Cataclasite in the next section. The interior uses of Coquina include Decorative aggregates, Homes, Hotels and Interior decoration whereas the interior uses of Cataclasite include Decorative aggregates and Homes. Due to some exceptional properties of Coquina and Cataclasite, they have various applications in construction industry. The uses of Coquina in construction industry include Building houses or walls, Construction aggregate and that of Cataclasite include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.
More about Coquina and Cataclasite
Here you can know more about Coquina and Cataclasite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Coquina and Cataclasite consists of mineral content and compound content. The mineral content of Coquina includes Apatite, Augite, Bronzite, Calcite, Chert, Chlorite, Clay Minerals, Epidote, Feldspar, Garnet, Micas, Muscovite or Illite and mineral content of Cataclasite includes Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Coquina vs Cataclasite, the texture, color and appearance plays an important role in determining the type of rock. Coquina is available in beige, buff, orange colors whereas, Cataclasite is available in brown, green, white, yellow colors. Appearance of Coquina is Layered, Banded, Veined and Shiny and that of Cataclasite is Dull and Banded. Properties of rock is another aspect for Coquina vs Cataclasite. The hardness of Coquina is 1-2 and that of Cataclasite is 3-4. The types of Coquina are Not Available whereas types of Cataclasite are Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Coquina is white while that of Cataclasite is black. The specific heat capacity of Coquina is Not Available and that of Cataclasite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Coquina is heat resistant, impact resistant, pressure resistant, wear resistant whereas Cataclasite is heat resistant, impact resistant, pressure resistant.