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Phyllite and Phonolite


Phonolite and Phyllite


Definition

Definition
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks  
Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Unknown  

Etymology
From Greek phullon leaf + -ite1  
From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit  

Class
Metamorphic Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Phyllitic Sheen, Slaty  
Granular  

Color
Black to Grey, Light Greenish Grey  
Brown, Buff, Cream, Green, Grey, Pink, White  

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
Yes  

Appearance
Crinkled or Wavy  
Banded and Foilated  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone  
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  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Sculpture  
Artifacts, Monuments, Sculpture  

Other Uses
  
  

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

Types

Types
Phyllite  
Kenyte  

Features
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny  
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  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.  
Phonolite are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   

Composition
  
  

Mineral Content
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon  
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite  

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

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Contact Metamorphism  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
1-2  
5.5-6  

Grain Size
Medium to Fine Coarse Grained  
Fine Grained  

Fracture
Conchoidal  
Conchoidal to Uneven  

Streak
White  
White  

Porosity
Highly Porous  
Less Porous  

Luster
Phyllitic  
Greasy to Dull  

Compressive Strength
50.00 N/mm2  
39
150.00 N/mm2  
22

Cleavage
Crenulation and Pervasive  
-  

Toughness
1.2  
-  

Specific Gravity
2.72-2.73  
2.6  

Transparency
Opaque  
Translucent to Opaque  

Density
2.18-3.3 g/cm3  
2.6 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam  
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam  

Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa  
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  

Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  
Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden  

Others
-  
Greenland  

Deposits in Western Continents
  
  

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

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Phyllite and Phonolite Properties

Know all about Phyllite and Phonolite properties here. All properties of rocks are important as they define the type of rock and its application. Phyllite belongs to Metamorphic Rocks while Phonolite belongs to Igneous Rocks.Texture of Phyllite is Phyllitic Sheen, Slaty whereas that of Phonolite is Granular. Phyllite appears Crinkled or Wavy and Phonolite appears Banded and Foilated. The luster of Phyllite is phyllitic while that of Phonolite is greasy to dull. Phyllite is available in black to grey, light greenish grey colors whereas Phonolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Phyllite and Phonolite are cemetery markers, commemorative tablets, creating artwork, writing slates.

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