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Migmatite vs Tuff


Tuff vs Migmatite


Definition

Definition
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components   
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption   

History
  
  

Origin
Southern Alps, France   
Italy   

Discoverer
Jakob Sederholm   
Unknown   

Etymology
From the Greek word migma which means a mixture   
From a Latin word tophous then in Italian tufo and finally tuff   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture

Texture
Foliated   
Clastic, Pyroclastic   

Color
Black, Bluish - Grey, Brown, Brown- Black, Dark Greenish - Grey, Dark Grey to Black   
Brown, Grey, Yellow   

Maintenance
More   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull, Banded and Foilated   
Dull, Vesicular and Foilated   

Uses

Architecture
  
  

Interior Uses
Countertops, Flooring, Kitchens   
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   
Building houses or walls, Construction Aggregate   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Jewelry, Tombstones, Used to manufracture paperweights and bookends   
Creating Artwork   

Types

Types
Diatexites and Metatexites   
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.   

Features
Generally rough to touch, Is one of the oldest rock   
Always found as volcanic pipes over deep continental crust   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Easter Island in the Polynesian Triangle, Pacific Ocean   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Migmatites form by high temperature regional and thermal metamorphism of protolith rocks where rocks melt partially due to high temperature.   
Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.   

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas, Muscovite or Illite, Quartz, Quartzite, Silica, Zircon   
Calcite, Chlorite   

Compound Content
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, MnO, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   
Hydrogen Sulfide, Sulfur Dioxide   

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   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
5.5-6.5   
4-6   

Grain Size
Medium to Fine Coarse Grained   
Fine Grained   

Fracture
Irregular   
Uneven   

Streak
White   
White   

Porosity
Very Less Porous   
Highly Porous   

Luster
Dull to Pearly to Subvitreous   
Vitreous to Dull   

Compressive Strength
Not Available   
243.80 N/mm2   
5

Cleavage
Poor   
Not Available   

Toughness
1.2   
Not Available   

Specific Gravity
2.65-2.75   
2.73   

Transparency
Opaque   
Opaque   

Density
Not Available   
1-1.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.20 kJ/Kg K   
25

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Iran, Iraq, Kazakhstan, Kyrgyzstan, Mongolia, Russia   
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen   

Africa
Cameroon, Ethiopia, Ghana, Kenya, Madagascar, Morocco, Mozambique, Namibia, Nigeria, Tanzania, Togo   
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda   

Europe
Albania, Austria, Bosnia and Herzegovina, Finland, France, Georgia, Germany, Hungary, Italy, Kosovo, Monaco, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, Sweden, Switzerland, Ukraine, United Kingdom   
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom   

Others
Not Yet Found   
Antarctica, Hawaii Islands   

Deposits in Western Continents
  
  

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

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

Deposits in Oceania Continent
  
  

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

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Migmatite vs Tuff 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 Migmatite and Tuff Reserves. Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components. Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. 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 Migmatite vs Tuff information and Migmatite vs Tuff characteristics in the upcoming sections.

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Migmatite vs Tuff 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. Migmatite vs Tuff characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Migmatite and Properties of Tuff. Learn more about Migmatite vs Tuff in the next section. The interior uses of Migmatite include Countertops, Flooring and Kitchens whereas the interior uses of Tuff include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration. Due to some exceptional properties of Migmatite and Tuff, they have various applications in construction industry. The uses of Migmatite in construction industry include As dimension stone, Cement manufacture, For road aggregate, Making natural cement and that of Tuff include Building houses or walls, Construction aggregate.

More about Migmatite and Tuff

Here you can know more about Migmatite and Tuff. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Migmatite and Tuff consists of mineral content and compound content. The mineral content of Migmatite includes Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas, Muscovite or Illite, Quartz, Quartzite, Silica, Zircon and mineral content of Tuff includes Calcite, Chlorite. You can also check out the list of all Metamorphic Rocks. When we have to compare Migmatite vs Tuff, the texture, color and appearance plays an important role in determining the type of rock. Migmatite is available in black, bluish - grey, brown, brown- black, dark greenish - grey, dark grey to black colors whereas, Tuff is available in brown, grey, yellow colors. Appearance of Migmatite is Dull, Banded and Foilated and that of Tuff is Dull, Vesicular and Foilated. Properties of rock is another aspect for Migmatite vs Tuff. The hardness of Migmatite is 5.5-6.5 and that of Tuff is 4-6. The types of Migmatite are Diatexites and Metatexites whereas types of Tuff are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Migmatite and Tuff is white. The specific heat capacity of Migmatite is Not Available and that of Tuff is 0.20 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Migmatite is heat resistant, pressure resistant whereas Tuff is heat resistant, impact resistant, pressure resistant, wear resistant.

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