Definition
Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations
  
Diatomite is a fine-grained sedimentary rock which is formed from consolidated diatomaceous earth
  
History
  
  
Origin
Unknown
  
Germany
  
Discoverer
Unknown
  
Unknown
  
Etymology
From the English mud and stone, from low German mudde and stainaz
  
From diatom + -ite1
  
Class
Sedimentary Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Soft Rock
  
Family
  
  
Group
Not Applicable
  
Not Applicable
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Clastic
  
Clastic or Non-Clastic
  
Color
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow
  
Grey, White, Yellow
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Non-Durable
  
Water Resistant
Yes
  
No
  
Scratch Resistant
No
  
No
  
Stain Resistant
No
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
No
  
No
  
Appearance
Rough and Dull
  
Soft
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Entryways, Floor Tiles, Interior Decoration
  
Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Roof Tiles
  
Garden Decoration, Paving Stone
  
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, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Source of calcium
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Sculpture, Small Figurines
  
Artifacts
  
Other Uses
  
  
Commercial Uses
Creating Artwork, Pottery
  
Alumina Refineries, Animal feed filler, As a Feed Additive for Livestock, Creating Artwork, Drawing on blackboards, Fire resistant, Gymnasts, athletes and mountain climbers use for grip, In aquifers, Soil Conditioner, To ignite fire, Used as a filter medium, Used as an insecticide, Whiting material in toothpaste, paint and paper
  
Types
Marl, Shale and Argillite
  
Not Available
  
Features
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock
  
Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Not Yet Used
  
Famous Monuments
Not Applicable
  
Not Applicable
  
Sculpture
Used
  
Not Yet Used
  
Famous Sculptures
Data Not Available
  
Not Applicable
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Not Yet Used
  
Fossils
Present
  
Present
  
Formation
Mudstone forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are buried and compacted by overlying sediment hence forming mudstone.
  
Diatomite rock formed from the skeletal remains of single celled plants called diatoms. When diatoms die, their skeletal remains sink to the bottom of lakes and oceans etc. hence forming diatomite deposit.
  
Composition
  
  
Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
  
Calcite, Clay, Clay Minerals, Quartz, Sand
  
Compound Content
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide
  
Ca, NaCl, CaO
  
Transformation
  
  
Metamorphism
No
  
No
  
Types of Metamorphism
Not Applicable
  
Not Applicable
  
Weathering
Yes
  
Yes
  
Types of Weathering
Chemical Weathering, Mechanical Weathering
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Sea Erosion
  
Chemical Erosion, Coastal Erosion, Wind Erosion
  
Physical Properties
  
  
Hardness
2-3
  
1
  
Grain Size
Very fine-grained
  
Very fine-grained
  
Fracture
Not Available
  
Not Available
  
Streak
White
  
White
  
Porosity
Highly Porous
  
Highly Porous
  
Luster
Dull
  
Dull
  
Cleavage
Perfect
  
Non-Existent
  
Toughness
2.6
  
1
  
Specific Gravity
2.2-2.8
  
2.3-2.4
  
Transparency
Opaque
  
Opaque
  
Density
2.4-2.8 g/cm3
  
2.49-2.51 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.39 kJ/Kg K
  
23
0.90 kJ/Kg K
  
12
Resistance
Heat Resistant, Impact Resistant
  
Heat Resistant
  
Deposits in Eastern Continents
  
  
Asia
Bangladesh, China, India, Russia
  
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
  
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
  
England, France, Germany, Spain, United Kingdom
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
Colombia
  
Deposits in Oceania Continent
  
  
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
  
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
  
All about Mudstone and Diatomite Properties
Know all about Mudstone and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone and Diatomite belong to Sedimentary Rocks.Texture of Mudstone is Clastic whereas that of Diatomite is Clastic or Non-Clastic. Mudstone appears Rough and Dull and Diatomite appears Soft. The luster of Mudstone and Diatomite is dull. Mudstone and Diatomite are available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Mudstone are creating artwork, pottery and that of Diatomite are alumina refineries, animal feed filler, as a feed additive for livestock, creating artwork, drawing on blackboards, fire resistant, gymnasts, athletes and mountain climbers use for grip, in aquifers, soil conditioner, to ignite fire, used as a filter medium, used as an insecticide, whiting material in toothpaste, paint and paper.