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Pumice vs Migmatite


Migmatite vs Pumice


Definition

Definition
Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals   
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components   

History
  
  

Origin
Spain   
Southern Alps, France   

Discoverer
Unknown   
Jakob Sederholm   

Etymology
From Old French pomis, from a Latin dialect variant of pumex   
From the Greek word migma which means a mixture   

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
Vesicular   
Foliated   

Color
Beige, Colourless, Grey, Light Green, Light Grey, Pink, White, Yellow- grey   
Black, Bluish - Grey, Brown, Brown- Black, Dark Greenish - Grey, Dark Grey to Black   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
No   

Wind Resistant
No   
No   

Acid Resistant
Yes   
No   

Appearance
Vesicular   
Dull, Banded and Foilated   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing, Powder   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, In landscaping and horticulture, Making natural cement, Production of lightweight concrete blocks   
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   

Medical Industry
As an abrasive in skin exfoliating products, In Chemical and Pharmaceutical Industry, Medicines and Cosmetics   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts   

Other Uses
  
  

Commercial Uses
As a traction material on snow-covered roads, As an abrasive in pencil erasers, Fine abrasive used for polishing, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Used in aquariums   
Cemetery Markers, Jewelry, Tombstones, Used to manufracture paperweights and bookends   

Types

Types
Scoria   
Diatexites and Metatexites   

Features
Host Rock for Lead   
Generally rough to touch, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Not Yet Used   
Not Yet Used   

Famous Sculptures
Not Applicable   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Pumice rock forms when the magma cools so quickly that atoms in the melt are not able to arrange themselves into a crystalline structure.   
Migmatites form by high temperature regional and thermal metamorphism of protolith rocks where rocks melt partially due to high temperature.   

Composition
  
  

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

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

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Burial Metamorphism, Impact Metamorphism   
Burial Metamorphism, Cataclastic 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, Sea Erosion, Water Erosion, Wind Erosion   
Chemical Erosion, Glacier Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
6   
5.5-6.5   

Grain Size
Fine Grained   
Medium to Fine Coarse Grained   

Fracture
Planar   
Irregular   

Streak
White, Greenish White or Grey   
White   

Porosity
Highly Porous   
Very Less Porous   

Luster
Earthy   
Dull to Pearly to Subvitreous   

Compressive Strength
51.20 N/mm2   
26
Not Available   

Cleavage
Perfect   
Poor   

Toughness
3   
1.2   

Specific Gravity
2.86   
2.65-2.75   

Transparency
Opaque   
Opaque   

Density
0.25-0.3 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.87 kJ/Kg K   
14
Not Available   

Resistance
Impact Resistant, Pressure Resistant   
Heat Resistant, Pressure Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Indonesia, Japan, Russia   
China, India, Iran, Iraq, Kazakhstan, Kyrgyzstan, Mongolia, Russia   

Africa
Ethiopia, Kenya, Tanzania   
Cameroon, Ethiopia, Ghana, Kenya, Madagascar, Morocco, Mozambique, Namibia, Nigeria, Tanzania, Togo   

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

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA   
Canada, Costa Rica, Cuba, Mexico, Panama, USA   

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

Deposits in Oceania Continent
  
  

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

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Pumice vs Migmatite 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 Pumice and Migmatite Reserves. Pumice is a volcanic rock that consists of highly vesicular rough textured volcanic glass, which may or may not contain crystals. Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components. 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 Pumice vs Migmatite information and Pumice vs Migmatite characteristics in the upcoming sections.

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

More about Pumice and Migmatite

Here you can know more about Pumice and Migmatite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Pumice and Migmatite consists of mineral content and compound content. The mineral content of Pumice includes Aluminum Oxides, Calcite, Carbonate, Iron Oxides, Silica and mineral content of Migmatite includes Biotite, Chlorite, Feldspar, Garnet, Graphite, Hornblade, Micas, Muscovite or Illite, Quartz, Quartzite, Silica, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Pumice vs Migmatite, the texture, color and appearance plays an important role in determining the type of rock. Pumice is available in beige, colourless, grey, light green, light grey, pink, white, yellow- grey colors whereas, Migmatite is available in black, bluish - grey, brown, brown- black, dark greenish - grey, dark grey to black colors. Appearance of Pumice is Vesicular and that of Migmatite is Dull, Banded and Foilated. Properties of rock is another aspect for Pumice vs Migmatite. The hardness of Pumice is 6 and that of Migmatite is 5.5-6.5. The types of Pumice are Scoria whereas types of Migmatite are Diatexites and Metatexites. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Pumice and Migmatite is white, greenish white or grey. The specific heat capacity of Pumice is 0.87 kJ/Kg K and that of Migmatite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Pumice is impact resistant, pressure resistant whereas Migmatite is heat resistant, pressure resistant.

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