Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
  
Diatomite is a fine-grained sedimentary rock which is formed from consolidated diatomaceous earth
  
History
  
  
Origin
Tamil Nadu, India
  
Germany
  
Discoverer
T. H. Holland
  
Unknown
  
Etymology
From Job Charnock, an administtrator of East India Company
  
From diatom + -ite1
  
Class
Igneous Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Hard Rock
  
Durable Rock, Soft Rock
  
Family
  
  
Group
Plutonic
  
Not Applicable
  
Other Categories
Coarse Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Granular
  
Clastic or Non-Clastic
  
Color
Black, Grey, Orange, Pink, White
  
Grey, White, Yellow
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Non-Durable
  
Water Resistant
No
  
No
  
Scratch Resistant
Yes
  
No
  
Stain Resistant
Yes
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
Yes
  
No
  
Appearance
Veined or Pebbled
  
Soft
  
Architecture
  
  
Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads
  
Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Bridges, Paving Stone, Garden Decoration, Office Buildings, Resorts
  
Garden Decoration, Paving Stone
  
Other Architectural Uses
Curbing
  
Curbing
  
Industry
  
  
Construction Industry
As Dimension Stone
  
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
Artifacts, Monuments, Sculpture, Small Figurines
  
Artifacts
  
Other Uses
  
  
Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones
  
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
Enderbite
  
Not Available
  
Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock
  
Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Used
  
Not Yet Used
  
Famous Monuments
Data Not Available
  
Not Applicable
  
Sculpture
Used
  
Not Yet Used
  
Famous Sculptures
Data Not Available
  
Not Applicable
  
Pictographs
Not Used
  
Used
  
Petroglyphs
Not Used
  
Used
  
Figurines
Used
  
Not Yet Used
  
Fossils
Absent
  
Present
  
Formation
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.
  
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
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz
  
Calcite, Clay, Clay Minerals, Quartz, Sand
  
Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
  
Ca, NaCl, CaO
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Not Applicable
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
  
Chemical Erosion, Coastal Erosion, Wind Erosion
  
Physical Properties
  
  
Hardness
6-7
  
1
  
Grain Size
Coarse Grained
  
Very fine-grained
  
Fracture
Not Available
  
Not Available
  
Streak
White
  
White
  
Porosity
Very Less Porous
  
Highly Porous
  
Luster
Not Available
  
Dull
  
Cleavage
Not Available
  
Non-Existent
  
Toughness
Not Available
  
1
  
Specific Gravity
Not Available
  
2.3-2.4
  
Transparency
Opaque
  
Opaque
  
Density
2.6 g/cm3
  
2.49-2.51 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
0.90 kJ/Kg K
  
12
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant
  
Deposits in Eastern Continents
  
  
Asia
India
  
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
  
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
Europe
Albania, Romania, Scotland, United Kingdom
  
England, France, Germany, Spain, United Kingdom
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, USA
  
South America
Brazil, Colombia, Venezuela
  
Colombia
  
Deposits in Oceania Continent
  
  
Australia
Central Australia, Western Australia
  
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
  
All about Charnockite and Diatomite Properties
Know all about Charnockite and Diatomite properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite belongs to Igneous Rocks while Diatomite belongs to Sedimentary Rocks.Texture of Charnockite is Granular whereas that of Diatomite is Clastic or Non-Clastic. Charnockite appears Veined or Pebbled and Diatomite appears Soft. The luster of Charnockite is not available while that of Diatomite is dull. Charnockite is available in black, grey, orange, pink, white colors whereas Diatomite is available in grey, white, yellow colors. The commercial uses of Charnockite are curling, gemstone, laboratory bench tops, tombstones 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.