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Argillite vs Marl


Marl vs Argillite


Definition

Definition
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate  
Marl is an unconsolidated sedimentary rock consisting of clay and lime  

History
  
  

Discoverer
Unknown  
Unknown  

Etymology
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite  
From Old French marle, from Late Latin marglia  

Class
Sedimentary Rocks  
Sedimentary Rocks  

Sub-Class
Durable Rock, Soft Rock  
Durable Rock, Soft Rock  

Family
  
  

Group
Not Applicable  
Not Applicable  

Other Categories
Fine Grained Rock, Opaque Rock  
Fine Grained Rock, Opaque Rock  

Texture

Texture
Clastic, Polished  
Earthy  

Color
Dark Grey to Black, Pink, Red, White  
Beige, Brown, Green, Grey, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
No  

Acid Resistant
Yes  
No  

Appearance
Rough and Dull  
Rough and Dull  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration  
Decorative Aggregates, Floor Tiles  

Exterior Uses
As Building Stone, Garden Decoration, Office Buildings  
As Building Stone, Roof Tiles  

Other Architectural Uses
Curbing, Whetstones  
Curbing  

Industry
  
  

Construction Industry
Used for flooring, stair treads, borders and window sills.  
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar  

Medical Industry
Not Yet Used  
Not Yet Used  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts, Jewellery, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Fire resistant, Used to manufracture paperweights and bookends  
Creating Artwork, Soil Conditioner  

Types

Types
Not Available  
Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl  

Features
Is one of the oldest rock  
Generally rough to touch, Is one of the oldest rock, Splintery, Very fine grained rock  

Archaeological Significance
  
  

Monuments
Used  
Not Yet Used  

Famous Monuments
Data Not Available  
Not Applicable  

Sculpture
Used  
Used  

Famous Sculptures
Data Not Available  
Data Not Available  

Pictographs
Used  
Used  

Petroglyphs
Used  
Used  

Figurines
Used  
Used  

Fossils
Present  
Present  

Formation

Formation
An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.  
Marl forms when very fine-grained clay particles are deposited in water which settles at the bottom of water bodies and are compacted by overlying sediment; the water squeezes out and hence forming Marl rock.  

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz  
Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz  

Compound Content
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide  
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide  

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
Not Applicable  
Not Applicable  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering  
Biological Weathering, Chemical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion  
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
2-3  
2-3  

Grain Size
Fine Grained  
Very fine-grained  

Fracture
Conchoidal to Uneven  
Conchoidal  

Streak
White to Grey  
White  

Porosity
Highly Porous  
Highly Porous  

Luster
Waxy and Dull  
Dull  

Cleavage
Slaty  
Not Available  

Toughness
2.6  
2.6  

Specific Gravity
2.56-2.68  
2.2-2.8  

Transparency
Opaque  
Opaque  

Density
2.54-2.66 g/cm3  
2.4-2.8 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.87 kJ/Kg K  
14
Not Available  

Resistance
Heat Resistant, Impact Resistant  
Heat Resistant, Impact Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia  
India, Pakistan, Russia  

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania  
Ethiopia, Kenya, Morocco, South Africa  

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

Others
Not Yet Found  
Not Yet Found  

Deposits in Western Continents
  
  

North America
USA  
USA  

South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela  
Colombia, Ecuador, Peru  

Deposits in Oceania Continent
  
  

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

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Argillite vs Marl 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 Argillite and Marl Reserves. Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. Marl is an unconsolidated sedimentary rock consisting of clay and lime. 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 Argillite vs Marl information and Argillite vs Marl characteristics in the upcoming sections.

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Argillite vs Marl 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. Argillite vs Marl characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Argillite and Properties of Marl. Learn more about Argillite vs Marl in the next section. The interior uses of Argillite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Marl include Decorative aggregates and Floor tiles. Due to some exceptional properties of Argillite and Marl, they have various applications in construction industry. The uses of Argillite in construction industry include Used for flooring, stair treads, borders and window sills. and that of Marl include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Argillite and Marl

Here you can know more about Argillite and Marl. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Argillite and Marl consists of mineral content and compound content. The mineral content of Argillite includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz and mineral content of Marl includes Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Argillite vs Marl, the texture, color and appearance plays an important role in determining the type of rock. Argillite is available in dark grey to black, pink, red, white colors whereas, Marl is available in beige, brown, green, grey, white colors. Appearance of Argillite is Rough and Dull and that of Marl is Rough and Dull. Properties of rock is another aspect for Argillite vs Marl. Hardness of Argillite and Marl is 2-3. The types of Argillite are Not Available whereas types of Marl are Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Argillite is white to grey while that of Marl is white. The specific heat capacity of Argillite is 0.87 kJ/Kg K and that of Marl is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Argillite is heat resistant, impact resistant whereas Marl is heat resistant, impact resistant.

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