Home

Difference Between Shale and Slate

Shale Rock
Slate Rock
swap <> Difference Between Slate and Shale
Definition

Definition
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles
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

History

Origin
Unknown
England

Etymology
From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,
From Old French esclate, from esclat (French éclat)

Class
Sedimentary Rocks
Metamorphic Rocks
📊

Texture

Texture
Clastic, Splintery
Foliated

Color
Black, Brown, Buff, Green, Grey, Red, Yellow
Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue

Maintenance
More
Less

Durability
📊

Water Resistant
📊

Scratch Resistant
📊

Stain Resistant
📊

Appearance
Muddy
Dull
📊

Uses

Architecture

Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
📊

Exterior Uses
As Building Stone, As Facing Stone, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
📊

Industry

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
As Dimension Stone

Antiquity Uses
Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses
Creating Artwork, Pottery
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
📊

Types

Types
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Not Available

Features
Easily splits into thin plates, Generally rough to touch, Very fine grained rock
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock
📊

Archaeological Significance

Famous Monuments
Jantar Mantar in India
Data Not Available

Fossils
Present
Absent
📊

Formation

Formation
Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.
Slate is a low grade metamorphic rock that is generally formed by metamorphosis of mudstone or shale, under relatively low pressure and temperature conditions.

Composition

Mineral Content
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon
📊

Compound Content
Ca, Fe, Mg, Silicon Dioxide, Sodium
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
📊

Transformation

Metamorphism

Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness
3
3-4

Fracture
Not Available
Splintery
📊

Streak
White
Light to dark brown
📊

Porosity
Highly Porous
Less Porous
📊

Compressive Strength
95.00 N/mm2
21
30.00 N/mm2
31
📊

Toughness
2.6
1.2

Specific Gravity
2.2-2.8
2.65-2.8

Density
2.4-2.8 g/cm3
2.6-2.8 g/cm3

Thermal Properties

Specific Heat Capacity
0.39 kJ/Kg K
23
0.76 kJ/Kg K
17
📊

Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia
Bangladesh, China, India, Russia
China, India, Turkey

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Not Yet Found

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom

Others
Not Yet Found
Arctic

Deposits in Western Continents

South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Brazil

Deposits in Oceania Continent

Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Not Yet Found