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Breccia and Argillite


Argillite and Breccia


Definition

Definition
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material   
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   

History
  
  

Origin
England   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Italian, literally gravel, Germanic origin and related to break   
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite   

Class
Sedimentary Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Brecciated, Clastic   
Clastic, Polished   

Color
Beige, Black, Blue, Brown, Buff, Green, Grey, Orange, Pink, Purple, Red, Rust, White, Yellow   
Dark Grey to Black, Pink, Red, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
Yes   

Appearance
Layered, Banded, Veined and Shiny   
Rough and Dull   

Uses

Architecture
  
  

Interior Uses
Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration   
Decorative Aggregates, Homes, Interior Decoration   

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings   
As Building Stone, Garden Decoration, Office Buildings   

Other Architectural Uses
Curbing   
Curbing, Whetstones   

Industry
  
  

Construction Industry
As Dimension Stone, Construction Aggregate, Landscaping, Roadstone   
Used for flooring, stair treads, borders and window sills.   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Sculpture   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, Jewelry   
Fire resistant, Used to manufracture paperweights and bookends   

Types

Types
Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia   
Not Available   

Features
Available in Lots of Colors and Patterns, Clasts are smooth to touch   
Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Used   
Used   

Fossils
Present   
Present   

Formation

Formation
Breccia is a clastic sedimentary rock which is composed of broken fragments of minerals or rock which are cemented together by a fine-grained matrix and it forms where broken, angular fragments of rock or mineral debris accumulate.   
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.   

Composition
  
  

Mineral Content
Calcite, Clay, Feldspar, Phosphates, Quartz, Silica   
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz   

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

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion   
Chemical Erosion   

Properties

Physical Properties
  
  

Hardness
7   
2-3   

Grain Size
Medium to Coarse Grained   
Fine Grained   

Fracture
Uneven   
Conchoidal to Uneven   

Streak
White   
White to Grey   

Porosity
Less Porous   
Highly Porous   

Luster
Dull to Pearly   
Waxy and Dull   

Cleavage
Non-Existent   
Slaty   

Toughness
Not Available   
2.6   

Specific Gravity
2.86-2.87   
2.56-2.68   

Transparency
Opaque   
Opaque   

Density
0 g/cm3   
2.54-2.66 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.87 kJ/Kg K   
14

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan   
Bangladesh, China, India, Russia   

Africa
Namibia, Nigeria, South Africa   
Ethiopia, Kenya, Morocco, South Africa, Tanzania   

Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom   
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   

Others
Greenland   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Barbados, Canada, Mexico, Panama, USA   
USA   

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Breccia and Argillite Properties

Know all about Breccia and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Breccia and Argillite belong to Sedimentary Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Argillite is Clastic, Polished. Breccia appears Layered, Banded, Veined and Shiny and Argillite appears Rough and Dull. The luster of Breccia is dull to pearly while that of Argillite is waxy and dull. Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Breccia are creating artwork, gemstone, jewelry and that of Argillite are fire resistant, used to manufracture paperweights and bookends.

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