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Gritstone and Benmoreite


Benmoreite and Gritstone


Definition

Definition
Gritstone or grit is a hard, coarse-grained, siliceous sandstone   
An iron rich extrusive rock found as a member of the alkali basalt magma series   

History
  
  

Origin
Pennines, England   
Isle of Mull, Scotland   

Discoverer
J.J. Ferber   
Ben More   

Etymology
From Grit + Stone   
From the name of discoverer, Ben More   

Class
Sedimentary Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture

Texture
Earthy   
Glassy, Massive, Porphyritic, Scoriaceous, Trachytic, Vesicular   

Color
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow   
Black, Brown, Light to Dark Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
No   

Acid Resistant
No   
No   

Appearance
Layered and Foliated   
Rough and Dull   

Uses

Architecture
  
  

Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration   
Floor Tiles, Homes, Hotels, Kitchens   

Exterior Uses
As Building Stone, Garden Decoration, Office Buildings, Paving Stone   
As Building Stone, Paving Stone, Garden Decoration, Office Buildings   

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Construction Aggregate, Roadstone   
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

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   
Commemorative Tablets, Creating Artwork, Curling   

Types

Types
Not Available   
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB) and Tholeiitic Basalt   

Features
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock   
Has High structural resistance against erosion and climate, Very fine grained rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Used   
Used   

Fossils
Present   
Absent   

Formation

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.   
Benmoreite is a type of Igneous rock which is formed through the cooling and solidification of lava or magma. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

Mineral Content
Calcite, Clay Minerals, Feldspar, Micas, Quartz   
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase   

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide   
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
6-7   
6   

Grain Size
Coarse Grained   
Fine Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White   
Black   

Porosity
Highly Porous   
Less Porous   

Luster
Dull   
Earthy   

Compressive Strength
70.00 N/mm2   
24
37.40 N/mm2   
28

Cleavage
Perfect   
Perfect   

Toughness
Not Available   
2.3   

Specific Gravity
2.250   
2.8-3   

Transparency
Opaque   
Opaque   

Density
2.2 g/cm3   
2.9-3.1 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
0.84 kJ/Kg K   
15

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan   
India, Russia   

Africa
Namibia, Nigeria, South Africa   
South Africa   

Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Poland, Sweden, Switzerland, United Kingdom   
Iceland   

Others
Greenland   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, USA   

South America
Brazil   
Brazil   

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Western Australia   
Not Yet Found   

Summary >>
<< Reserves

All about Gritstone and Benmoreite Properties

Know all about Gritstone and Benmoreite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Benmoreite belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Benmoreite is Glassy, Massive, Porphyritic, Scoriaceous, Trachytic, Vesicular. Gritstone appears Layered and Foliated and Benmoreite appears Rough and Dull. The luster of Gritstone is dull while that of Benmoreite is earthy. Gritstone and Benmoreite are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones and that of Benmoreite are commemorative tablets, creating artwork, curling.

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