1 Definition
1.1 Definition
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks
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
1.2 History
1.2.1 Origin
2.0.0 Discoverer
2.2 Etymology
From Greek phullon leaf + -ite1
From Old French esclate, from esclat (French éclat)
2.4 Class
Metamorphic Rocks
Metamorphic Rocks
2.6.2 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
3.2 Family
3.3.1 Group
Not Applicable
Not Applicable
3.5 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
4 Texture
4.1 Texture
Phyllitic Sheen, Slaty
Foliated
4.2 Color
Black to Grey, Light Greenish Grey
Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue
4.3 Maintenance
4.5 Durability
5.2.2 Water Resistant
5.3.2 Scratch Resistant
5.3.6 Stain Resistant
5.3.11 Wind Resistant
6.1.3 Acid Resistant
6.2 Appearance
7 Uses
7.1 Architecture
7.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
7.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
7.1.3 Other Architectural Uses
7.2 Industry
7.2.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone
As Dimension Stone
7.2.2 Medical Industry
Not Yet Used
Not Yet Used
7.3 Antiquity Uses
Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
7.4 Other Uses
7.4.1 Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates
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
8 Types
8.1 Types
Not Available
Not Available
8.2 Features
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock
8.3 Archaeological Significance
8.3.1 Monuments
8.3.2 Famous Monuments
Not Applicable
Data Not Available
8.3.3 Sculpture
8.3.4 Famous Sculptures
Data Not Available
Data Not Available
8.3.5 Pictographs
8.3.6 Petroglyphs
8.3.7 Figurines
8.4 Fossils
9 Formation
9.1 Formation
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.
Slate is a low grade metamorphic rock that is generally formed by metamorphosis of mudstone or shale, under relatively low pressure and temperature conditions.
9.2 Composition
9.2.2 Mineral Content
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon
9.2.4 Compound Content
CaO, Carbon Dioxide, MgO
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
9.3 Transformation
9.3.1 Metamorphism
9.3.4 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
9.3.5 Weathering
9.3.7 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
9.3.8 Erosion
9.3.9 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
10 Properties
10.1 Physical Properties
10.1.1 Hardness
10.1.5 Grain Size
Medium to Fine Coarse Grained
Very fine-grained
10.1.6 Fracture
10.1.7 Streak
White
Light to dark brown
10.1.8 Porosity
Highly Porous
Less Porous
10.1.9 Luster
10.1.10 Compressive Strength
10.1.18 Cleavage
Crenulation and Pervasive
Slaty
10.1.19 Toughness
10.1.20 Specific Gravity
10.3.2 Transparency
10.3.3 Density
2.18-3.3 g/cm32.6-2.8 g/cm3
0
1400
11.4 Thermal Properties
11.4.1 Specific Heat Capacity
12.3.2 Resistance
Heat Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
13 Reserves
13.1 Deposits in Eastern Continents
13.1.1 Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
China, India, Turkey
13.1.2 Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa
Not Yet Found
13.1.3 Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom
13.1.4 Others
13.2 Deposits in Western Continents
13.2.1 North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA
USA
13.2.2 South America
Brazil, Colombia, Guyana
Brazil
13.3 Deposits in Oceania Continent
13.3.1 Australia
New South Wales, New Zealand, Queensland
Not Yet Found