1 Definition
1.1 Definition
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
1.2 History
1.2.1 Origin
Pennines, England
1.2.2 Discoverer
J.J. Ferber
1.3 Etymology
From Grit + Stone
1.4 Class
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Earthy
2.2 Color
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
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
Layered and Foliated
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, Garden Decoration, Office Buildings, Paving Stone
3.1.3 Other Architectural Uses
Curbing
3.2 Industry
3.2.1 Construction Industry
Construction Aggregate, Roadstone
3.2.2 Medical Industry
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO), Tombstones
4 Types
4.1 Types
Not Available
4.2 Features
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained 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
Not Used
4.3.6 Petroglyphs
Not Used
4.3.7 Figurines
Used
4.4 Fossils
Present
5 Formation
5.1 Formation
Gritstone is a type of sedimentary rock which was formed on the floors of wide river deltas where the grit deposits were laid down, with every tide or flood dumping another layer of sediment.
5.2 Composition
5.2.1 Mineral Content
Calcite, Clay Minerals, Feldspar, Micas, Quartz
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, 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, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
✔
✘
86% - Sedimentary Rocks Rocks have it !
▶
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.1.2 Grain Size
Coarse Grained
6.1.3 Fracture
Conchoidal
6.1.4 Streak
White
6.1.5 Porosity
Highly Porous
6.1.6 Luster
Dull
6.1.7 Compressive Strength
70.00 N/mm2
Rank: 24 (Overall) ▶
0.15
450
6.1.8 Cleavage
Perfect
6.1.9 Toughness
Not Available
6.1.10 Specific Gravity
6.1.11 Transparency
Opaque
6.1.12 Density
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.92 kJ/Kg K
Rank: 10 (Overall) ▶
0.14
3.2
6.2.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
7.1.2 Africa
Namibia, Nigeria, South Africa
7.1.3 Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Poland, Sweden, Switzerland, United Kingdom
7.1.4 Others
Greenland
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
7.2.2 South America
Brazil
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, New Zealand, Western Australia