1 Definition
1.1 Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation
Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals
1.3 History
1.3.1 Origin
1.4.1 Discoverer
2.2 Etymology
From French schiste, Greek skhistos i.e. split
From French syénite, from Latin Syenites (lapis ) (stone) of Syene
2.3 Class
Metamorphic Rocks
Igneous Rocks
2.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
2.6 Family
2.6.1 Group
2.8 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
3 Texture
3.1 Texture
3.2 Color
Black, Blue, Brown, Dark Brown, Green, Grey, Silver
Brown, Buff, Cream, Green, Grey, Pink, White
3.3 Maintenance
3.4 Durability
3.4.2 Water Resistant
3.4.4 Scratch Resistant
3.4.6 Stain Resistant
3.4.7 Wind Resistant
3.5.1 Acid Resistant
4.2 Appearance
Layered and Shiny
Banded and Foilated
5 Uses
5.1 Architecture
5.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Interior Decoration
Flooring, Homes, Hotels, Interior Decoration
5.1.2 Exterior Uses
Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
5.1.4 Other Architectural Uses
5.3 Industry
5.3.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
5.3.3 Medical Industry
Not Yet Used
Not Yet Used
5.4 Antiquity Uses
Artifacts
Artifacts, Monuments, Sculpture, Small Figurines
5.6 Other Uses
5.6.1 Commercial Uses
Used in aquariums, Writing Slates
Cemetery Markers, Creating Artwork
6 Types
6.1 Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.
Shonkinite
6.2 Features
Easily splits into thin plates, Smooth to touch
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable
7.2 Archaeological Significance
7.2.1 Monuments
7.3.1 Famous Monuments
Not Applicable
Data Not Available
7.4.2 Sculpture
7.4.3 Famous Sculptures
Not Applicable
Data Not Available
7.4.5 Pictographs
7.4.7 Petroglyphs
7.4.9 Figurines
7.5 Fossils
8 Formation
8.1 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.
Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.
8.2 Composition
8.2.1 Mineral Content
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
8.2.3 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
8.4 Transformation
8.4.1 Metamorphism
9.0.2 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
9.1.1 Weathering
9.2.2 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
9.2.3 Erosion
9.2.5 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
10 Properties
10.1 Physical Properties
10.1.1 Hardness
11.1.2 Grain Size
Medium to Fine Coarse Grained
Medium to Fine Coarse Grained
11.1.3 Fracture
11.1.4 Streak
11.1.5 Porosity
Highly Porous
Less Porous
11.1.6 Luster
Shiny
Subvitreous to Dull
11.1.7 Compressive Strength
11.1.14 Cleavage
11.1.15 Toughness
11.1.16 Specific Gravity
11.1.20 Transparency
11.1.21 Density
2.8-2.9 g/cm32.6-2.8 g/cm3
0
1400
11.2 Thermal Properties
11.2.1 Specific Heat Capacity
11.3.2 Resistance
Impact Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Impact Resistant, Wear Resistant
12 Reserves
12.1 Deposits in Eastern Continents
12.1.1 Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
12.1.2 Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
12.1.3 Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
Bulgaria, England, Germany, Norway, Romania, Switzerland
12.1.4 Others
Not Yet Found
Not Yet Found
12.2 Deposits in Western Continents
12.2.1 North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA
USA
12.2.2 South America
Brazil, Colombia, Guyana
Brazil, Chile
12.3 Deposits in Oceania Continent
12.3.1 Australia
New South Wales, New Zealand, Queensland
New Zealand, Queensland, South Australia, Western Australia