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
  
Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface
  
History
  
  
Discoverer
Unknown
  
Unknown
  
Etymology
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite
  
From its mineral and compound content and its relation with Basalt and Andesite rock
  
Class
Sedimentary Rocks
  
Igneous Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Not Applicable
  
Volcanic
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Clastic, Polished
  
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
  
Color
Dark Grey to Black, Pink, Red, White
  
Black, Brown, Light to Dark Grey
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
No
  
Scratch Resistant
Yes
  
Yes
  
Stain Resistant
Yes
  
Yes
  
Wind Resistant
Yes
  
No
  
Acid Resistant
Yes
  
Yes
  
Appearance
Rough and Dull
  
Dull and Soft
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
  
Floor Tiles, Homes, Hotels, Kitchens
  
Exterior Uses
As Building Stone, Garden Decoration, Office Buildings
  
As Building Stone, Paving Stone, Garden Decoration, Office Buildings
  
Other Architectural Uses
Curbing, Whetstones
  
Curbing, Whetstones
  
Industry
  
  
Construction Industry
Used for flooring, stair treads, borders and window sills.
  
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Monuments, Sculpture
  
Artifacts, Monuments
  
Other Uses
  
  
Commercial Uses
Fire resistant, Used to manufracture paperweights and bookends
  
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork
  
Types
Not Available
  
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite
  
Features
Is one of the oldest rock
  
Has High structural resistance against erosion and climate, Very fine grained 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
  
Used
  
Fossils
Present
  
Absent
  
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.
  
Basaltic Trachandesite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.
  
Composition
  
  
Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
  
Olivine, Plagioclase, Pyroxene
  
Compound Content
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
  
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
  
Transformation
  
  
Metamorphism
No
  
Yes
  
Types of Metamorphism
Not Applicable
  
Contact Metamorphism
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering
  
Biological Weathering
  
Erosion
Yes
  
No
  
Types of Erosion
Chemical Erosion
  
Not Available
  
Physical Properties
  
  
Hardness
2-3
  
6
  
Grain Size
Fine Grained
  
Fine Grained
  
Fracture
Conchoidal to Uneven
  
Conchoidal
  
Streak
White to Grey
  
White to Grey
  
Porosity
Highly Porous
  
Less Porous
  
Luster
Waxy and Dull
  
Not Available
  
Compressive Strength
Not Available
  
37.50 N/mm
2
  
27
Cleavage
Slaty
  
Not Available
  
Toughness
2.6
  
2.3
  
Specific Gravity
2.56-2.68
  
2.8-3
  
Transparency
Opaque
  
Opaque
  
Density
2.54-2.66 g/cm3
  
2.9-3.1 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.87 kJ/Kg K
  
14
0.84 kJ/Kg K
  
15
Resistance
Heat Resistant, Impact Resistant
  
Heat Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Bangladesh, China, India, Russia
  
India, Russia
  
Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
  
South Africa
  
Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
  
Iceland
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
Brazil
  
Deposits in Oceania Continent
  
  
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
  
Not Yet Found
  
Argillite vs Basaltic Trachyandesite 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 Basaltic Trachyandesite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Argillite and Properties of Basaltic Trachyandesite. Learn more about Argillite vs Basaltic Trachyandesite in the next section. The interior uses of Argillite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Basaltic Trachyandesite include Floor tiles, Homes, Hotels and Kitchens. Due to some exceptional properties of Argillite and Basaltic Trachyandesite, 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 Basaltic Trachyandesite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.
More about Argillite and Basaltic Trachyandesite
Here you can know more about Argillite and Basaltic Trachyandesite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Argillite and Basaltic Trachyandesite 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 Basaltic Trachyandesite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Argillite vs Basaltic Trachyandesite, 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, Basaltic Trachyandesite is available in black, brown, light to dark grey colors. Appearance of Argillite is Rough and Dull and that of Basaltic Trachyandesite is Dull and Soft. Properties of rock is another aspect for Argillite vs Basaltic Trachyandesite. The hardness of Argillite is 2-3 and that of Basaltic Trachyandesite is 6. The types of Argillite are Not Available whereas types of Basaltic Trachyandesite are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Argillite and Basaltic Trachyandesite is white to grey. The specific heat capacity of Argillite is 0.87 kJ/Kg K and that of Basaltic Trachyandesite is 0.84 kJ/Kg K. 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 Basaltic Trachyandesite is heat resistant, pressure resistant, wear resistant.