1 Definition
1.2 Definition
Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks
1.3 History
1.3.1 Origin
1.4.1 Discoverer
1.6 Etymology
From Latin term that means purple
From Greek phullon leaf + -ite1
1.7 Class
Igneous Rocks
Metamorphic Rocks
2.1.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
2.3 Family
2.3.1 Group
2.5 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
3 Texture
3.1 Texture
Aphanitic to Porphyritic
Phyllitic Sheen, Slaty
3.2 Color
Black, Brown, Colourless, Green, Grey, Pink, White
Black to Grey, Light Greenish Grey
3.3 Maintenance
3.4 Durability
3.4.2 Water Resistant
3.4.4 Scratch Resistant
3.4.6 Stain Resistant
3.4.7 Wind Resistant
3.5.1 Acid Resistant
4.2 Appearance
5 Uses
5.1 Architecture
5.2.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
5.2.3 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration
5.2.5 Other Architectural Uses
5.4 Industry
5.4.2 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, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone
5.4.3 Medical Industry
Not Yet Used
Not Yet Used
5.5 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Sculpture
5.6 Other Uses
5.6.1 Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Metallurgical Flux, Soil Conditioner, Source of Magnesia (MgO)
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates
6 Types
6.1 Types
Not Available
Not Available
6.2 Features
Host Rock for Lead
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny
6.3 Archaeological Significance
6.3.1 Monuments
6.3.3 Famous Monuments
Data Not Available
Not Applicable
7.1.2 Sculpture
7.1.3 Famous Sculptures
Data Not Available
Data Not Available
7.1.4 Pictographs
7.1.5 Petroglyphs
7.1.6 Figurines
7.2 Fossils
8 Formation
8.1 Formation
Rhomb-porphyry is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.
8.2 Composition
8.2.1 Mineral Content
Alkali feldspar, Biotite, Plagioclase, Pyroxene
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon
8.2.2 Compound Content
CaO, Cl, MgO
CaO, Carbon Dioxide, MgO
8.3 Transformation
8.3.1 Metamorphism
8.3.2 Types of Metamorphism
Impact Metamorphism
Not Applicable
8.3.3 Weathering
8.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
8.3.5 Erosion
8.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
9 Properties
9.1 Physical Properties
9.1.1 Hardness
9.1.8 Grain Size
Fine Grained
Medium to Fine Coarse Grained
9.1.9 Fracture
9.1.10 Streak
9.1.11 Porosity
Very Less Porous
Highly Porous
9.1.12 Luster
Subvitreous to Dull
Phyllitic
9.1.13 Compressive Strength
9.1.14 Cleavage
Perfect
Crenulation and Pervasive
9.1.15 Toughness
9.1.16 Specific Gravity
9.1.20 Transparency
9.1.21 Density
2.8-2.9 g/cm32.18-3.3 g/cm3
0
1400
9.2 Thermal Properties
9.2.1 Specific Heat Capacity
9.3.2 Resistance
Heat Resistant, Pressure Resistant
Heat Resistant, Pressure Resistant, Water Resistant
10 Reserves
10.1 Deposits in Eastern Continents
10.1.1 Asia
Not Yet Found
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
10.1.2 Africa
Not Yet Found
Egypt, Ethiopia, Morocco, Nigeria, South Africa
10.1.3 Europe
Bulgaria
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
10.1.4 Others
Not Yet Found
Not Yet Found
10.2 Deposits in Western Continents
10.2.1 North America
USA
Canada, Costa Rica, Cuba, Mexico, Panama, USA
10.2.2 South America
Not Yet Found
Brazil, Colombia, Guyana
10.3 Deposits in Oceania Continent
10.3.1 Australia
Not Yet Found
New South Wales, New Zealand, Queensland