Home
Compare Rocks


Slate vs Soapstone


Soapstone vs Slate


Definition

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  
It is a metamorphic magnesium rich rock because it is composed of the mineral talc  

History
  
  

Origin
England  
USA  

Discoverer
Abraham Gottlob Werner  
Unknown  

Etymology
From Old French esclate, from esclat (French éclat)  
From 17th century, because of its greasy feel and use like a soap  

Class
Metamorphic Rocks  
Metamorphic Rocks  

Sub-Class
Durable Rock, Medium Hardness Rock  
Durable Rock, Soft Rock  

Family
  
  

Group
-  
-  

Other Categories
Fine Grained Rock, Opaque Rock  
Fine Grained Rock, Opaque Rock  

Texture

Texture
Foliated  
Polished  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Dull  
Dull, Banded and Foilated  

Uses

Architecture
  
  

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

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone  
As Facing Stone, Garden Decoration  

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone  
Manufacture of Magnesium and Dolomite Refractories  

Medical Industry
-  
Taken as a Supplement for Calcium or Magnesium  

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

Other Uses
  
  

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, Creating Artwork, Gemstone, Jewelry, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Production of Lime, Source of Magnesia (MgO)  

Types

Types
Phyllite, Schist, and Slate  
Metamorphic rock  

Features
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock  
Host Rock for Lead  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
Christ the Redeemer in Rio de Janeiro, Stonehenge in English county of Wiltshire  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

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.  
Soapstone is a talc-schist, which is a type of metamorphic rock and it is largely composed of the mineral talc and is thus rich inmagnesium.   

Composition
  
  

Mineral Content
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon  
Albite, Apatite, Biotite, Calcite, Carbonate, Clay Minerals, Hornblende, Ilmenite, Micas, Plagioclase, Pyroxene, Quartz  

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

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism  

Weathering
Yes  
No  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
-  

Erosion
Yes  
No  

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

Properties

Physical Properties
  
  

Hardness
3-4  
1  

Grain Size
Very fine-grained  
Fine Grained  

Fracture
Splintery  
Conchoidal  

Streak
Light to dark brown  
Black  

Porosity
Less Porous  
Less Porous  

Luster
Dull  
Greasy  

Compressive Strength
30.00 N/mm2  
99+
225.00 N/mm2  
8

Cleavage
Slaty  
Perfect  

Toughness
1.2  
1  

Specific Gravity
2.65-2.8  
2.86  

Transparency
Opaque  
Opaque  

Density
2.6-2.8 g/cm3  
2.8-2.9 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.76 kJ/Kg K  
19
0.88 kJ/Kg K  
13

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Turkey  
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand  

Africa
-  
Egypt, Ethiopia, Ghana, South Africa, Western Africa  

Europe
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom  
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom  

Others
Arctic  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, USA  

South America
Brazil  
Colombia  

Deposits in Oceania Continent
  
  

Australia
-  
Central Australia, New Zealand, Queensland  

Definition >>
<< All

Slate vs Soapstone Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Slate and Soapstone Reserves. 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. It is a metamorphic magnesium rich rock because it is composed of the mineral talc. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Slate vs Soapstone information and Slate vs Soapstone characteristics in the upcoming sections.

Compare Metamorphic Rocks

Slate vs Soapstone Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Slate vs Soapstone characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Slate and Properties of Soapstone. Learn more about Slate vs Soapstone in the next section. The interior uses of Slate include Bathrooms, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads whereas the interior uses of Soapstone include Bathrooms, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Slate and Soapstone, they have various applications in construction industry. The uses of Slate in construction industry include As dimension stone and that of Soapstone include Manufacture of magnesium and dolomite refractories.

More about Slate and Soapstone

Here you can know more about Slate and Soapstone. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Slate and Soapstone consists of mineral content and compound content. The mineral content of Slate includes Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon and mineral content of Soapstone includes Albite, Apatite, Biotite, Calcite, Carbonate, Clay Minerals, Hornblende, Ilmenite, Micas, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Metamorphic Rocks. When we have to compare Slate vs Soapstone, the texture, color and appearance plays an important role in determining the type of rock. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas, Soapstone is available in black, black to grey, green, grey colors. Appearance of Slate is Dull and that of Soapstone is Dull, Banded and Foilated. Properties of rock is another aspect for Slate vs Soapstone. The hardness of Slate is 3-4 and that of Soapstone is 1. The types of Slate are Phyllite, Schist, and Slate whereas types of Soapstone are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Slate is light to dark brown while that of Soapstone is black. The specific heat capacity of Slate is 0.76 kJ/Kg K and that of Soapstone is 0.88 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Slate is heat resistant, impact resistant, pressure resistant, wear resistant whereas Soapstone is heat resistant, pressure resistant.

Metamorphic Rocks

Metamorphic Rocks

» More Metamorphic Rocks

Compare Metamorphic Rocks

» More Compare Metamorphic Rocks