Granulite and Cataclasite
Definition
Definition
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix
History
Origin
Central Europe
Swiss Alps, Europe
Discoverer
Unknown
Michael Tellinger
Etymology
From Latin granulum, a little grain or fine grained
From the Italian word cataclasi
Class
Metamorphic Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Not Applicable
Not Applicable
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Granoblastic
Clastic
Color
Black, Brown
Brown, Green, White, Yellow
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
Yes
No
Stain Resistant
Yes
No
Wind Resistant
No
No
Acid Resistant
No
No
Appearance
Veined or Pebbled
Dull and Banded
Uses
Architecture
Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Entryways, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
Decorative Aggregates, Homes
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Paving Stone
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
As Dimension Stone, Building houses or walls
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
Other Uses
Commercial Uses
Curling, Gemstone, Laboratory bench tops, Soil Conditioner, Tombstones
Commemorative Tablets, Creating Artwork
Types
Types
Not Available
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite
Features
Clasts are smooth to touch
Easily splits into thin plates, Is one of the oldest rock
Archaeological Significance
Monuments
Used
Not Yet Used
Famous Monuments
Data Not Available
Not Applicable
Sculpture
Used
Not Yet Used
Famous Sculptures
Data Not Available
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Used
Not Yet Used
Fossils
Absent
Absent
Formation
Formation
Granulite is a fine-grained granular metamorphic rock in which the main component minerals are feldspars and quartz and forms at high temperature and pressure conditions.
Cataclasiste rocks mainly form by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Composition
Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz
Compound Content
Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Sulfur Dioxide, Titanium Dioxide
Silicon Dioxide
Transformation
Metamorphism
No
No
Types of Metamorphism
Not Applicable
Not Applicable
Weathering
Yes
Yes
Types of Weathering
Biological Weathering, Chemical Weathering
Mechanical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Coastal Erosion, Wind Erosion
Properties
Physical Properties
Hardness
6-7
3-4
Grain Size
Medium to Coarse Grained
Fine Grained
Fracture
Not Available
NA
Streak
White
Black
Porosity
Very Less Porous
Less Porous
Luster
Vitreous
Vitreous
Compressive Strength
175.00 N/mm2
13
Not Available
Cleavage
Imperfect
Not Available
Toughness
Not Available
Not Available
Specific Gravity
2.8-3.0
2.1
Transparency
Opaque
Translucent to Opaque
Density
3.06-3.33 g/cm3
2.9-3.1 g/cm3
Thermal Properties
Specific Heat Capacity
0.14 kJ/Kg K
26
Not Available
Resistance
Heat Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
Reserves
Deposits in Eastern Continents
Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, India, Russia, Saudi Arabia, South Korea
Africa
Angola, Egypt, Madagascar, Nigeria, South Africa
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
Europe
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela
England, Finland, France, Spain, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada, USA
Canada, USA
South America
Not Yet Found
Argentina, Colombia
Deposits in Oceania Continent
Australia
Not Yet Found
Central Australia, Western Australia
All about Granulite and Cataclasite Properties
Know all about Granulite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Granulite and Cataclasite belong to Metamorphic Rocks.Texture of Granulite is Granoblastic whereas that of Cataclasite is Clastic. Granulite appears Veined or Pebbled and Cataclasite appears Dull and Banded. The luster of Granulite and Cataclasite is vitreous. Granulite is available in black, brown colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Cataclasite are commemorative tablets, creating artwork.
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