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Wackestone and Pseudotachylite


Pseudotachylite and Wackestone


Definition

Definition
A carbonate rock which is matrix supported and contains over 10% allochems in a carbonate mud matrix.   
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.   

History
  
  

Origin
Unknown   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From the English mud and stone, from low German mudde and stainaz   
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.   

Class
Sedimentary Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Clastic   
Quench   

Color
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow   
Black, Brown, Colourless, Green, Grey, Pink, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
Yes   

Acid Resistant
No   
Yes   

Appearance
Rough and Dull   
Dull and Soft   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Flooring, Interior Decoration   
Decorative Aggregates, Entryways, Interior Decoration   

Exterior Uses
As Facing Stone, Garden Decoration, Roof Tiles   
As Building Stone, As Facing Stone, Garden Decoration   

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar   
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Sculpture   
Artifacts, Monuments   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Pottery   
Creating Artwork, Gemstone   

Types

Types
Marl, Shale and Argillite   
Not Available   

Features
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock   
Host Rock for Lead   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Not Yet Used   

Fossils
Present   
Absent   

Formation

Formation
Wackestone is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. These particles settle down and are then compacted due to high temperature and pressure hence forming Wackestone.   
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz   
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides   

Compound Content
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide   
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism   

Weathering
Yes   
No   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Not Applicable   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Sea Erosion, Wind Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
2-3   
7   

Grain Size
Very fine-grained   
Very fine-grained   

Fracture
Conchoidal   
Uneven   

Streak
White   
Light to dark brown   

Porosity
Highly Porous   
Less Porous   

Luster
Dull   
Vitreous   

Compressive Strength
225.00 N/mm2   
7
60.00 N/mm2   
25

Cleavage
Perfect   
Irregular   

Toughness
2.6   
Not Available   

Specific Gravity
2.2-2.8   
2.46-2.86   

Transparency
Opaque   
Transparent to Translucent   

Density
2.4-2.8 g/cm3   
2.7-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.39 kJ/Kg K   
23
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia   
South Korea   

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

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

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Not Yet Found   

South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela   
Not Yet Found   

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Wackestone and Pseudotachylite Properties

Know all about Wackestone and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Wackestone belongs to Sedimentary Rocks while Pseudotachylite belongs to Metamorphic Rocks.Texture of Wackestone is Clastic whereas that of Pseudotachylite is Quench. Wackestone appears Rough and Dull and Pseudotachylite appears Dull and Soft. The luster of Wackestone is dull while that of Pseudotachylite is vitreous. Wackestone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Wackestone are cemetery markers, pottery and that of Pseudotachylite are creating artwork, gemstone.

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