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Minette vs Shale


Shale vs Minette


Definition

Definition
Minette is a variety of Lamprophyre and is porphyritic alkaline igneous rock which is mainly dominated by biotite and potassic feldspar  
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Johann Gottlob Lehmann  

Etymology
From French mine ore, mine + ette  
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,  

Class
Igneous Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Porphyritic  
Clastic, Splintery  

Color
Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey  
Black, Brown, Buff, Green, Grey, Red, Yellow  

Maintenance
Less  
More  

Durability
Durable  
Durable  

Water Resistant
Yes  
No  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Dull, Banded and Foilated  
Muddy  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

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

Medical Industry
Taken as a Supplement for Calcium or Magnesium  
-  

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

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)  
Creating Artwork, Pottery  

Types

Types
Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite  
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale  

Features
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny  
Easily splits into thin plates, Generally rough to touch, Very fine grained rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
Jantar Mantar in India  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
Minette formation takes place deep beneath the Earth’s surface at around 150 to 450 kms, and are erupted rapidly and violently.  
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.  

Composition
  
  

Mineral Content
Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene  
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides  

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

Transformation
  
  

Metamorphism
Yes  
No  

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

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
5-6  
3  

Grain Size
Fine to Coarse Grained  
Very fine-grained  

Fracture
Conchoidal  
-  

Streak
White  
White  

Porosity
Very Less Porous  
Highly Porous  

Luster
Subvitreous to Dull  
Dull  

Compressive Strength
150.00 N/mm2  
22
95.00 N/mm2  
30

Cleavage
Conchoidal  
Slaty  

Toughness
-  
2.6  

Specific Gravity
2.86-2.87  
2.2-2.8  

Transparency
Translucent to Opaque  
Opaque  

Density
2.95-2.96 g/cm3  
2.4-2.8 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
0.39 kJ/Kg K  
30

Resistance
Heat Resistant, Impact Resistant  
Heat Resistant, Impact Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Russia  
Bangladesh, China, India, Russia  

Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa  
Ethiopia, Kenya, Morocco, South Africa, Tanzania  

Europe
England, Hungary, Iceland, United Kingdom  
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland  

Others
Antarctica, Greenland  
-  

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA  
USA  

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

Deposits in Oceania Continent
  
  

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

Definition >>
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Minette vs Shale 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 Minette and Shale Reserves. Minette is a variety of Lamprophyre and is porphyritic alkaline igneous rock which is mainly dominated by biotite and potassic feldspar. Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. 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 Minette vs Shale information and Minette vs Shale characteristics in the upcoming sections.

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Minette vs Shale 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. Minette vs Shale characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Minette and Properties of Shale. Learn more about Minette vs Shale in the next section. The interior uses of Minette include Countertops, Decorative aggregates and Interior decoration whereas the interior uses of Shale include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Minette and Shale, they have various applications in construction industry. The uses of Minette in construction industry include As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories and that of Shale include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Minette and Shale

Here you can know more about Minette and Shale. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Minette and Shale consists of mineral content and compound content. The mineral content of Minette includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene and mineral content of Shale includes Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides. You can also check out the list of all Igneous Rocks. When we have to compare Minette vs Shale, the texture, color and appearance plays an important role in determining the type of rock. Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas, Shale is available in black, brown, buff, green, grey, red, yellow colors. Appearance of Minette is Dull, Banded and Foilated and that of Shale is Muddy. Properties of rock is another aspect for Minette vs Shale. The hardness of Minette is 5-6 and that of Shale is 3. The types of Minette are Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite whereas types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Minette and Shale is white. The specific heat capacity of Minette is 0.79 kJ/Kg K and that of Shale is 0.39 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Minette is heat resistant, impact resistant whereas Shale is heat resistant, impact resistant.

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