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Phonolite and Metapelite


Metapelite and Phonolite


Definition

Definition
Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic  
Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Unknown  

Etymology
From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit  
From Pelos or clay in Greek  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Granular  
Foliated  

Color
Brown, Buff, Cream, Green, Grey, Pink, White  
Dark Greenish - Grey, Green, Light Green, Light Greenish Grey  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
No  

Acid Resistant
Yes  
No  

Appearance
Banded and Foilated  
Banded  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics  
Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork  
Commemorative Tablets, Creating Artwork  

Types

Types
Kenyte  
Metamorphic rock  

Features
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock  
Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Phonolite are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Metapelite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.  

Composition
  
  

Mineral Content
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite  
Albite, Chlorite, Quartz  

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide  
Aluminium Oxide, CaO, MgO  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Contact Metamorphism  
-  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
5.5-6  
5-6  

Grain Size
Fine Grained  
Medium to Fine Coarse Grained  

Fracture
Conchoidal to Uneven  
Fibrous  

Streak
White  
-  

Porosity
Less Porous  
Highly Porous  

Luster
Greasy to Dull  
Earthy  

Compressive Strength
150.00 N/mm2  
22
40.00 N/mm2  
40

Cleavage
-  
-  

Toughness
-  
-  

Specific Gravity
2.6  
3.4-3.7  

Transparency
Translucent to Opaque  
Opaque  

Density
2.6 g/cm3  
0-300 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
0.72 kJ/Kg K  
22

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam  
-  

Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  
Western Africa  

Europe
Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden  
United Kingdom  

Others
Greenland  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
-  

South America
Brazil, Chile, Colombia, Uruguay, Venezuela  
Brazil, Colombia, Ecuador  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Queensland, South Australia, Tasmania, Western Australia  
Central Australia, Western Australia  

Summary >>
<< Reserves

All about Phonolite and Metapelite Properties

Know all about Phonolite and Metapelite properties here. All properties of rocks are important as they define the type of rock and its application. Phonolite belongs to Igneous Rocks while Metapelite belongs to Metamorphic Rocks.Texture of Phonolite is Granular whereas that of Metapelite is Foliated. Phonolite appears Banded and Foilated and Metapelite appears Banded. The luster of Phonolite is greasy to dull while that of Metapelite is earthy. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors. The commercial uses of Phonolite are cemetery markers, creating artwork and that of Metapelite are commemorative tablets, creating artwork.

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