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Evaporite and Migmatite


Migmatite and Evaporite


Definition

Definition
A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution   
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components   

History
  
  

Origin
USA   
Southern Alps, France   

Discoverer
Usiglio   
Jakob Sederholm   

Etymology
From a sediment left after the evaporation   
From the Greek word migma which means a mixture   

Class
Sedimentary Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Earthy   
Foliated   

Color
Colourless, Green, Grey, Silver, White   
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
No   
Yes   

Stain Resistant
No   
No   

Wind Resistant
Yes   
No   

Acid Resistant
No   
No   

Appearance
Glassy, Vesicular and Foilated   
Dull, Banded and Foilated   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, 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   
Curbing   

Industry
  
  

Construction Industry
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories   
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   

Medical Industry
Taken as a Supplement for Calcium or Magnesium   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts   

Other Uses
  
  

Commercial Uses
Used in the manufacture of Ceramic Powder, Used in the preparation of Sulfuric Acid and Silicon Diborite   
Cemetery Markers, Jewelry, Tombstones, Used to manufracture paperweights and bookends   

Types

Types
Not Available   
Diatexites and Metatexites   

Features
Generally rough to touch, Splintery, Veined   
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
Present   
Absent   

Formation

Formation
Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.   
Migmatites form by high temperature regional and thermal metamorphism of protolith rocks where rocks melt partially due to high temperature.   

Composition
  
  

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

Compound Content
CaMg(CO3)2, CaO, Calcium Sulfate, KCl, MgO, NaCl   
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, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism   

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Glacier Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
2-3   
5.5-6.5   

Grain Size
Medium to Fine Coarse Grained   
Medium to Fine Coarse Grained   

Fracture
Conchoidal   
Irregular   

Streak
White   
White   

Porosity
Less Porous   
Very Less Porous   

Luster
Subvitreous to Dull   
Dull to Pearly to Subvitreous   

Compressive Strength
225.00 N/mm2   
7
Not Available   

Cleavage
Perfect   
Poor   

Toughness
Not Available   
1.2   

Specific Gravity
2.86-2.99   
2.65-2.75   

Transparency
Translucent   
Opaque   

Density
2.8-2.9 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

Resistance
Heat Resistant, Pressure Resistant   
Heat Resistant, Pressure Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Not Available   
China, India, Iran, Iraq, Kazakhstan, Kyrgyzstan, Mongolia, Russia   

Africa
Not Available   
Cameroon, Ethiopia, Ghana, Kenya, Madagascar, Morocco, Mozambique, Namibia, Nigeria, Tanzania, Togo   

Europe
United Kingdom   
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
USA   
Canada, Costa Rica, Cuba, Mexico, Panama, USA   

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Evaporite and Migmatite Properties

Know all about Evaporite and Migmatite properties here. All properties of rocks are important as they define the type of rock and its application. Evaporite belongs to Sedimentary Rocks while Migmatite belongs to Metamorphic Rocks.Texture of Evaporite is Earthy whereas that of Migmatite is Foliated. Evaporite appears Glassy, Vesicular and Foilated and Migmatite appears Dull, Banded and Foilated. The luster of Evaporite is subvitreous to dull while that of Migmatite is dull to pearly to subvitreous. Evaporite is available in colourless, green, grey, silver, white colors whereas Migmatite is available in black, bluish - grey, brown, brown- black, dark greenish - grey, dark grey to black colors. The commercial uses of Evaporite are used in the manufacture of ceramic powder, used in the preparation of sulfuric acid and silicon diborite and that of Migmatite are cemetery markers, jewelry, tombstones, used to manufracture paperweights and bookends.

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