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Shale and Diorite


Diorite and Shale


Definition

Definition
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles   
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene   

History
  
  

Discoverer
Unknown   
Unknown   

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 early 19th century coined in French, formed irregularly from Greek diorizein distinguish   

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Clastic, Splintery   
Phaneritic   

Color
Black, Brown, Buff, Green, Grey, Red, Yellow   
Black, Brown, Light to Dark Grey, White   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
No   
No   

Stain Resistant
No   
No   

Wind Resistant
No   
Yes   

Acid Resistant
No   
No   

Appearance
Muddy   
Shiny   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration   
Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

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

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Creating Artwork, Pottery   
Creating Artwork, Curling   

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   
Typically speckled black and white.   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Jantar Mantar in India   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Used   

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.   
Diorite is a coarse-grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the Earth’s surface and cools down in the Earth’s crust.   

Composition
  
  

Mineral Content
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides   
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon   

Compound Content
Ca, Fe, Mg, Silicon Dioxide, Sodium   
Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

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

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
3   
6-7   

Grain Size
Very fine-grained   
Medium to Coarse Grained   

Fracture
Not Available   
Not Available   

Streak
White   
Bluish Black   

Porosity
Highly Porous   
Very Less Porous   

Luster
Dull   
Shiny   

Compressive Strength
95.00 N/mm2   
20
225.00 N/mm2   
7

Cleavage
Slaty   
Not Available   

Toughness
2.6   
2.1   

Specific Gravity
2.2-2.8   
2.8-3   

Transparency
Opaque   
Opaque   

Density
2.4-2.8 g/cm3   
2.8-3 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.39 kJ/Kg K   
23
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia   
Not Yet Found   

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania   
Egypt   

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
USA   

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

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia   
New Zealand, Western Australia   

Summary >>
<< Reserves

All about Shale and Diorite Properties

Know all about Shale and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Diorite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Diorite is Phaneritic. Shale appears Muddy and Diorite appears Shiny. The luster of Shale is dull while that of Diorite is shiny. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Diorite is available in black, brown, light to dark grey, white colors. The commercial uses of Shale are creating artwork, pottery and that of Diorite are creating artwork, curling.

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