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Argillite
Argillite

Rhyolite
Rhyolite



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Argillite
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Rhyolite

Argillite and Rhyolite

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
Rhyolite is a fine-grained igneous rock which is rich in silica
1.2 History
1.2.1 Origin
Unknown
North America
1.2.2 Discoverer
Unknown
Ferdinand von Richthofen
1.3 Etymology
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite
From German Rhyolit, from Greek rhuax lava stream + lithos stone
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Clastic, Polished
Aphanitic, Glassy, Porphyritic
2.2 Color
Dark Grey to Black, Pink, Red, White
Grey, White, Light Black
2.3 Maintenance
Less
More
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Rough and Dull
Banded
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens
3.1.2 Exterior Uses
As Building Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Paving Stone, Office Buildings
3.1.3 Other Architectural Uses
Curbing, Whetstones
Not Yet Used
3.2 Industry
3.2.1 Construction Industry
Used for flooring, stair treads, borders and window sills.
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
3.4 Other Uses
3.4.1 Commercial Uses
Fire resistant, Used to manufracture paperweights and bookends
Gemstone, Laboratory bench tops, Jewelry
4 Types
4.1 Types
Not Available
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.
4.2 Features
Is one of the oldest rock
Acidic in nature, Available in lots of colors
4.3 Archaeological Significance
4.3.1 Monuments
Used
Not Yet Used
4.3.2 Famous Monuments
Data Not Available
Not Applicable
4.3.3 Sculpture
Used
Not Yet Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Used
Not Used
4.3.6 Petroglyphs
Used
Not Used
4.3.7 Figurines
Used
Not Yet Used
4.4 Fossils
Present
Absent
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.
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.
5.2 Composition
5.2.1 Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz
5.2.2 Compound Content
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Biological Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
5.3.6 Types of Erosion
Chemical Erosion
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
2-36-7
Coal
1 7
6.1.2 Grain Size
Fine Grained
Large and Coarse Grained
6.1.3 Fracture
Conchoidal to Uneven
Sub-conchoidal
6.1.4 Streak
White to Grey
Colorless
6.1.5 Porosity
Highly Porous
Highly Porous
6.1.6 Luster
Waxy and Dull
Earthy
6.1.7 Compressive Strength
NA140.00 N/mm2
What Is Obsidian
0.15 450
6.1.8 Cleavage
Slaty
Not Available
6.1.9 Toughness
2.6
2
6.1.10 Specific Gravity
2.56-2.682.65-2.67
Granite
0 8.4
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.54-2.66 g/cm32.4-2.6 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.87 kJ/Kg KNA
What Is Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Bangladesh, China, India, Russia
China, India
7.1.2 Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
7.1.3 Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Germany, Iceland, Ireland, Italy, Spain
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
USA
Canada, USA
7.2.2 South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Argentina, 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
New Zealand, Queensland, Western Australia

All about Argillite and Rhyolite Properties

Know all about Argillite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Rhyolite belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Argillite appears Rough and Dull and Rhyolite appears Banded. The luster of Argillite is waxy and dull while that of Rhyolite is earthy. Argillite is available in dark grey to black, pink, red, white colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Rhyolite are gemstone, laboratory bench tops, jewelry.