1 Definition
1.1 Definition
Sandstone is defined as a rock which is composed of sand-sized grains of various minerals mostly of uniform size and often are smooth and rounded
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
1.3 History
1.3.1 Origin
Unknown
Romania and Moldova, Europe
1.4.1 Discoverer
1.6 Etymology
From its composition, sand and stone
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
1.7 Class
Sedimentary Rocks
Igneous Rocks
1.7.2 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
1.8 Family
1.8.1 Group
1.9 Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Clastic, Granular, Rough
Aphanitic to Porphyritic
2.2 Color
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
Bluish - Grey, Brown, Grey, Light to Dark Grey
2.3 Maintenance
2.4 Durability
2.4.2 Water Resistant
2.5.1 Scratch Resistant
2.5.2 Stain Resistant
3.1.2 Wind Resistant
3.1.4 Acid Resistant
3.2 Appearance
4 Uses
4.1 Architecture
4.1.1 Interior Uses
Countertops, Decorative Aggregates, Interior Decoration
Decorative Aggregates, Entryways, Interior Decoration
4.2.2 Exterior Uses
As Building Stone, As Facing Stone, Office Buildings
As Building Stone, Paving Stone, Garden Decoration
4.2.3 Other Architectural Uses
4.3 Industry
4.3.1 Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
4.4.1 Medical Industry
Not Yet Used
Not Yet Used
4.6 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
4.7 Other Uses
4.7.1 Commercial Uses
An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones, Used in aquariums
Commemorative Tablets, Creating Artwork
6 Types
6.1 Types
Grey Sandstones, Crystallized Sandstones, Hard Sandstones , Carbonate Cemented Sandstones and Ganister
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
6.3 Features
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock
Host Rock for Lead, Is one of the oldest rock
6.5 Archaeological Significance
6.5.1 Monuments
6.5.2 Famous Monuments
Abu Simbel in Egypt, Agia Sophia in Istanbul, Turkey, Angkor Wat in Cambodia, Buland Darwaza in Agra, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Dom in Berlin, Great Sphinx at Giza, Egypt, Hawa Mahal in Jaipur, India, Humayun's Tomb in Delhi, India, India Gate in Delhi, India, Jama Masjid in Delhi, India, Khajuraho Temples, India, Leh Palace in Leh, India, Lotus Temple in New Delhi, India, Luxor Temple in Egypt, Machu Picchu in Peru, Neuschwanstein in Bavaria, Petra in Jordan, Qutb Minar in India, Red Fort in Delhi, India, Sanchi Stupa in India
Not Applicable
6.5.5 Sculpture
6.5.6 Famous Sculptures
Ajanta Caves in Maharashtra, India, Elephanta Caves in Maharashtra, India, Mount Rushmore National Memorial in South Dakota, US
Not Applicable
6.5.8 Pictographs
6.5.10 Petroglyphs
6.5.12 Figurines
6.6 Fossils
7 Formation
7.1 Formation
Sandstone is a sedimentary rock which forms from cemented sand-sized clasts. It forms when sand layers are buried under sediments of sand.
Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Further, the Oceanic crust is hydrothermally altered as quartz and sodium are added.
7.3 Composition
7.3.1 Mineral Content
Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
7.3.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide
8.2 Transformation
8.2.1 Metamorphism
8.3.2 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism
8.3.3 Weathering
8.3.5 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
8.4.2 Erosion
8.4.3 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion
9 Properties
9.1 Physical Properties
9.1.1 Hardness
10.1.2 Grain Size
Coarse or Fine
Medium to Fine Coarse Grained
10.1.3 Fracture
10.1.4 Streak
10.1.5 Porosity
Highly Porous
Less Porous
10.1.6 Luster
10.1.7 Compressive Strength
10.1.14 Cleavage
10.1.15 Toughness
10.1.16 Specific Gravity
10.1.20 Transparency
10.1.21 Density
2.2-2.8 g/cm32.77-2.771 g/cm3
0
1400
10.2 Thermal Properties
10.2.1 Specific Heat Capacity
0.92 kJ/Kg K0.92 kJ/Kg K
0.14
3.2
10.3.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
11 Reserves
11.1 Deposits in Eastern Continents
11.1.1 Asia
China, India, Kazakhstan, Mongolia, Russia, Thailand, Uzbekistan
Not Yet Found
11.1.2 Africa
Namibia, Nigeria, South Africa
Not Yet Found
11.1.3 Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
France, Greece, Romania, Scotland, Spain
11.1.4 Others
11.2 Deposits in Western Continents
11.2.1 North America
11.2.2 South America
Brazil
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
11.3 Deposits in Oceania Continent
11.3.1 Australia
New South Wales, New Zealand
New Zealand, South Australia, Western Australia