1 Definition
1.1 Definition
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From Old French esclate, from esclat (French éclat)
From Greek phullon leaf + -ite1
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Foliated
Phyllitic Sheen, Slaty
2.2 Color
Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue
Black to Grey, Light Greenish Grey
2.3 Maintenance
2.4 Durability
2.4.1 Water Resistant
1.2.2 Scratch Resistant
1.2.3 Stain Resistant
1.2.5 Wind Resistant
1.3.1 Acid Resistant
1.5 Appearance
2 Uses
2.1 Architecture
2.1.1 Interior Uses
Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
2.1.3 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration
2.1.4 Other Architectural Uses
2.3 Industry
2.3.2 Construction Industry
As Dimension Stone
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone
2.3.3 Medical Industry
Not Yet Used
Not Yet Used
2.5 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Sculpture
2.6 Other Uses
2.6.1 Commercial Uses
Blackboards, Commemorative Tablets, Laboratory bench tops, Standard material for the bed of Billiard table, Standard material for the beds of Pool and Snooker table, Tombstones, Used in aquariums, Writing Slates
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates
4 Types
4.1 Types
Not Available
Not Available
4.3 Features
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny
4.5 Archaeological Significance
4.5.1 Monuments
4.5.2 Famous Monuments
Data Not Available
Not Applicable
4.6.1 Sculpture
4.6.3 Famous Sculptures
Data Not Available
Data Not Available
4.6.4 Pictographs
4.6.5 Petroglyphs
4.6.6 Figurines
4.7 Fossils
5 Formation
5.1 Formation
Slate is a low grade metamorphic rock that is generally formed by metamorphosis of mudstone or shale, under relatively low pressure and temperature conditions.
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.
5.2 Composition
5.2.1 Mineral Content
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
CaO, Carbon Dioxide, MgO
5.3 Transformation
5.3.1 Metamorphism
5.3.3 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Not Applicable
5.3.4 Weathering
5.3.6 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.7 Erosion
5.4.1 Types of Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
7 Properties
7.1 Physical Properties
7.1.1 Hardness
9.3.4 Grain Size
Very fine-grained
Medium to Fine Coarse Grained
9.3.6 Fracture
9.3.8 Streak
Light to dark brown
White
9.3.9 Porosity
Less Porous
Highly Porous
9.3.11 Luster
10.0.12 Compressive Strength
10.1.4 Cleavage
Slaty
Crenulation and Pervasive
10.1.6 Toughness
10.1.8 Specific Gravity
10.1.11 Transparency
10.1.12 Density
2.6-2.8 g/cm32.18-3.3 g/cm3
0
1400
10.2 Thermal Properties
10.2.1 Specific Heat Capacity
10.2.7 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Water Resistant
11 Reserves
11.1 Deposits in Eastern Continents
11.1.1 Asia
China, India, Turkey
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
11.1.2 Africa
Not Yet Found
Egypt, Ethiopia, Morocco, Nigeria, South Africa
11.1.3 Europe
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
11.1.4 Others
11.2 Deposits in Western Continents
11.2.1 North America
USA
Canada, Costa Rica, Cuba, Mexico, Panama, USA
11.2.2 South America
Brazil
Brazil, Colombia, Guyana
11.3 Deposits in Oceania Continent
11.3.1 Australia
Not Yet Found
New South Wales, New Zealand, Queensland