Home
Compare Rocks


Basalt vs Schist


Schist vs Basalt


Definition

Definition
Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth   
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation   

History
  
  

Origin
Egypt   
Unknown   

Discoverer
Georgius Agricola   
Unknown   

Etymology
From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites   
From French schiste, Greek skhistos i.e. split   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   
Foliated, Platy   

Color
Black, Brown, Light to Dark Grey   
Black, Blue, Brown, Dark Brown, Green, Grey, Silver   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
Yes   
No   

Stain Resistant
Yes   
No   

Wind Resistant
No   
No   

Acid Resistant
Yes   
No   

Appearance
Dull and Soft   
Layered and Shiny   

Uses

Architecture
  
  

Interior Uses
Floor Tiles, Homes, Hotels, Kitchens   
Decorative Aggregates, Floor Tiles, Interior Decoration   

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

Other Architectural Uses
Curbing, Whetstones   
Not Yet Used   

Industry
  
  

Construction Industry
Arrowheads, As Dimension Stone, Cobblestones, Cutting Tool, Rail Track Ballast, Roadstone   
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments   
Artifacts   

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork, Used in aquariums   
Used in aquariums, Writing Slates   

Types

Types
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite   
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Easily splits into thin plates, Smooth to touch   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Easter Island in the Polynesian Triangle, Pacific Ocean, Gateway of India in Mumbai, India, Gol Gumbaz in Karnataka, India   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Basalt forms when lava reaches the Earth's surface near an active volcano. The temperature of lava is between 1100 to 1250° C when it gets to the surface.   
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.   

Composition
  
  

Mineral Content
Olivine, Plagioclase, Pyroxene   
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc   

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   
CaO, Carbon Dioxide, MgO   

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Contact Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

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

Erosion
No   
Yes   

Types of Erosion
Not Available   
Chemical Erosion, Coastal Erosion, Glacier Erosion   

Properties

Physical Properties
  
  

Hardness
6   
3.5-4   

Grain Size
Fine Grained   
Medium to Fine Coarse Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White to Grey   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Not Available   
Shiny   

Compressive Strength
37.40 N/mm2   
28
Not Available   

Cleavage
Not Available   
Slaty   

Toughness
2.3   
1.5   

Specific Gravity
2.8-3   
2.5-2.9   

Transparency
Opaque   
Opaque   

Density
2.9-3.1 g/cm3   
2.8-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K   
15
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia   
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam   

Africa
South Africa   
Egypt, Ethiopia, Morocco, Nigeria, South Africa   

Europe
Iceland   
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, Costa Rica, Cuba, Mexico, Panama, USA   

South America
Brazil   
Brazil, Colombia, Guyana   

Deposits in Oceania Continent
  
  

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

Definition >>
<< All

Basalt vs Schist 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 Basalt and Schist Reserves. Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Basalt vs Schist information and Basalt vs Schist characteristics in the upcoming sections.

Compare Igneous Rocks

Basalt vs Schist 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. Basalt vs Schist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Basalt and Properties of Schist. Learn more about Basalt vs Schist in the next section. The interior uses of Basalt include Floor tiles, Homes, Hotels and Kitchens whereas the interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration. Due to some exceptional properties of Basalt and Schist, they have various applications in construction industry. The uses of Basalt in construction industry include Arrowheads, As dimension stone, Cobblestones, Cutting tool, Rail track ballast, Roadstone and that of Schist include As dimension stone, Building houses or walls, Cement manufacture, For road aggregate, Roadstone.

More about Basalt and Schist

Here you can know more about Basalt and Schist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Basalt and Schist consists of mineral content and compound content. The mineral content of Basalt includes Olivine, Plagioclase, Pyroxene and mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc. You can also check out the list of all Igneous Rocks. When we have to compare Basalt vs Schist, the texture, color and appearance plays an important role in determining the type of rock. Basalt is available in black, brown, light to dark grey colors whereas, Schist is available in black, blue, brown, dark brown, green, grey, silver colors. Appearance of Basalt is Dull and Soft and that of Schist is Layered and Shiny. Properties of rock is another aspect for Basalt vs Schist. The hardness of Basalt is 6 and that of Schist is 3.5-4. The types of Basalt are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite whereas types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Basalt is white to grey while that of Schist is white. The specific heat capacity of Basalt is 0.84 kJ/Kg K and that of Schist is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Basalt is heat resistant, pressure resistant, wear resistant whereas Schist is impact resistant, pressure resistant, water resistant.

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks