1 Definition
1.1 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
1.2 History
1.2.1 Origin
Unknown
1.2.2 Discoverer
Unknown
1.3 Etymology
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite
1.4 Class
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Clastic, Polished
2.2 Color
Dark Grey to Black, Pink, Red, White
2.3 Maintenance
Less
2.4 Durability
Durable
2.4.1 Water Resistant
✔
✘
59% - Sedimentary Rocks Rocks have it !
▶
2.4.2 Scratch Resistant
✔
✘
62% - Sedimentary Rocks Rocks have it !
▶
2.4.3 Stain Resistant
✔
✘
43% - Sedimentary Rocks Rocks have it !
▶
2.4.4 Wind Resistant
✔
✘
38% - Sedimentary Rocks Rocks have it !
▶
2.4.5 Acid Resistant
✔
✘
22% - Sedimentary Rocks Rocks have it !
▶
2.5 Appearance
Rough and Dull
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, Garden Decoration, Office Buildings
3.1.3 Other Architectural Uses
Curbing, Whetstones
3.2 Industry
3.2.1 Construction Industry
Used for flooring, stair treads, borders and window sills.
3.2.2 Medical Industry
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Fire resistant, Used to manufracture paperweights and bookends
4 Types
4.1 Types
Not Available
4.2 Features
Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Used
4.3.2 Famous Monuments
Data Not Available
4.3.3 Sculpture
Used
4.3.4 Famous Sculptures
Data Not Available
4.3.5 Pictographs
Used
4.3.6 Petroglyphs
Used
4.3.7 Figurines
Used
4.4 Fossils
Present
5 Formation
5.1 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.
5.2 Composition
5.2.1 Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
5.2.2 Compound Content
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
✔
✘
19% - Sedimentary Rocks Rocks have it !
▶
5.3.2 Types of Metamorphism
Not Applicable
5.3.3 Weathering
✔
✘
78% - Sedimentary Rocks Rocks have it !
▶
5.3.4 Types of Weathering
Biological Weathering
5.3.5 Erosion
✔
✘
86% - Sedimentary Rocks Rocks have it !
▶
5.3.6 Types of Erosion
Chemical Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.1.2 Grain Size
Fine Grained
6.1.3 Fracture
Conchoidal to Uneven
6.1.4 Streak
White to Grey
6.1.5 Porosity
Highly Porous
6.1.6 Luster
Waxy and Dull
6.1.7 Compressive Strength
Not Available
Rank: N/A (Overall) ▶
0.15
450
6.1.8 Cleavage
Slaty
6.1.9 Toughness
2.6
6.1.10 Specific Gravity
6.1.11 Transparency
Opaque
6.1.12 Density
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.87 kJ/Kg K
Rank: 14 (Overall) ▶
0.14
3.2
6.2.2 Resistance
Heat Resistant, Impact Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Bangladesh, China, India, Russia
7.1.2 Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
7.1.3 Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
7.1.4 Others
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
USA
7.2.2 South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia