1 Definition
2.1 Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation
Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface
2.4 History
2.4.2 Origin
2.4.3 Discoverer
2.5 Etymology
From French schiste, Greek skhistos i.e. split
From its mineral and compound content and its relation with Basalt and Andesite rock
2.7 Class
Metamorphic Rocks
Igneous Rocks
2.7.2 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
2.9 Family
2.9.2 Group
2.11 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
4 Texture
4.1 Texture
Foliated, Platy
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
4.3 Color
Black, Blue, Brown, Dark Brown, Green, Grey, Silver
Black, Brown, Light to Dark Grey
4.5 Maintenance
4.7 Durability
4.7.2 Water Resistant
4.7.4 Scratch Resistant
4.7.6 Stain Resistant
4.7.8 Wind Resistant
4.7.10 Acid Resistant
4.9 Appearance
Layered and Shiny
Dull and Soft
6 Uses
6.1 Architecture
6.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Interior Decoration
Floor Tiles, Homes, Hotels, Kitchens
6.1.3 Exterior Uses
Garden Decoration, Paving Stone
As Building Stone, Paving Stone, Garden Decoration, Office Buildings
6.1.5 Other Architectural Uses
Not Yet Used
Curbing, Whetstones
6.3 Industry
6.3.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
6.3.3 Medical Industry
Not Yet Used
Not Yet Used
6.5 Antiquity Uses
Artifacts
Artifacts, Monuments
6.7 Other Uses
6.7.1 Commercial Uses
Used in aquariums, Writing Slates
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork
8 Types
8.1 Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite
8.3 Features
Easily splits into thin plates, Smooth to touch
Has High structural resistance against erosion and climate, Very fine grained rock
8.5 Archaeological Significance
8.5.1 Monuments
Not Yet Used
Not Yet Used
8.5.3 Famous Monuments
Not Applicable
Not Applicable
8.5.5 Sculpture
Not Yet Used
Not Yet Used
8.5.7 Famous Sculptures
Not Applicable
Not Applicable
8.5.9 Pictographs
8.5.11 Petroglyphs
8.5.13 Figurines
8.7 Fossils
10 Formation
10.1 Formation
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.
Basaltic Trachandesite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.
10.3 Composition
10.3.1 Mineral Content
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc
Olivine, Plagioclase, Pyroxene
10.4.2 Compound Content
CaO, Carbon Dioxide, MgO
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
10.5 Transformation
10.5.1 Metamorphism
10.5.4 Types of Metamorphism
Not Applicable
Contact Metamorphism
10.5.5 Weathering
10.5.8 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering
10.5.9 Erosion
11.1.1 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Not Available
12 Properties
12.1 Physical Properties
12.1.1 Hardness
12.1.8 Grain Size
Medium to Fine Coarse Grained
Fine Grained
12.1.9 Fracture
12.1.10 Streak
12.1.11 Porosity
Highly Porous
Less Porous
12.1.12 Luster
12.1.13 Compressive Strength
12.1.17 Cleavage
12.1.18 Toughness
12.1.19 Specific Gravity
12.1.22 Transparency
12.1.23 Density
2.8-2.9 g/cm32.9-3.1 g/cm3
0
1400
12.3 Thermal Properties
12.3.1 Specific Heat Capacity
13.1.2 Resistance
Impact Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Pressure Resistant, Wear Resistant
14 Reserves
14.1 Deposits in Eastern Continents
14.1.1 Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
India, Russia
14.1.3 Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa
South Africa
14.1.5 Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
Iceland
14.2.2 Others
Not Yet Found
Not Yet Found
14.4 Deposits in Western Continents
14.4.1 North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA
Canada, USA
14.4.2 South America
Brazil, Colombia, Guyana
Brazil
14.5 Deposits in Oceania Continent
14.5.1 Australia
New South Wales, New Zealand, Queensland
Not Yet Found