1 Definition
1.1 Definition
A yellow sandstone which is flexible when cut into thin strips
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From the name of a mountain range where it was found; Itacolumi mountain in Brazil
From Finnish Rapakivi which stands for crumbly rock
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Clastic, Granular, Rough
Granular, Phaneritic
2.2 Color
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
Black, Grey, Orange, Pink, White
2.3 Maintenance
2.4 Durability
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
1.1.1 Wind Resistant
1.2.2 Acid Resistant
1.3 Appearance
2 Uses
2.1 Architecture
2.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
2.2.1 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Office Buildings, Paving Stone, Resorts
2.2.2 Other Architectural Uses
2.3 Industry
2.3.1 Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar
As Dimension Stone
2.3.2 Medical Industry
Not Yet Used
Not Yet Used
2.5 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
2.6 Other Uses
2.6.1 Commercial Uses
An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Laboratory bench tops, Tombstones
3 Types
3.1 Types
Not Available
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite
4.2 Features
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock
4.3 Archaeological Significance
4.3.1 Monuments
4.4.1 Famous Monuments
Data Not Available
Data Not Available
4.5.1 Sculpture
4.5.2 Famous Sculptures
Data Not Available
Data Not Available
4.6.1 Pictographs
4.6.2 Petroglyphs
4.6.4 Figurines
4.7 Fossils
5 Formation
5.1 Formation
Itacolumite is a sedimentary rock which forms from cemented sand-sized clasts and is a type of sandstone.
Granite is an igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks
5.2 Composition
5.2.1 Mineral Content
Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
5.3 Transformation
5.3.2 Metamorphism
5.3.3 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
5.3.4 Weathering
5.3.6 Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.7 Erosion
5.3.9 Types of Erosion
Chemical Erosion, Coastal Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.4.8 Grain Size
Coarse or Fine
Large and Coarse Grained
7.1.1 Fracture
7.2.2 Streak
7.3.2 Porosity
Highly Porous
Less Porous
7.3.4 Luster
Dull
Dull to Grainy with Sporadic parts Pearly and Vitreous
7.3.7 Compressive Strength
95.00 N/mm2175.00 N/mm2
0.15
450
9.1.12 Cleavage
9.1.14 Toughness
9.1.16 Specific Gravity
9.1.20 Transparency
9.1.21 Density
2.2-2.8 g/cm32.6-2.8 g/cm3
0
1400
9.2 Thermal Properties
9.2.1 Specific Heat Capacity
0.92 kJ/Kg K0.79 kJ/Kg K
0.14
3.2
9.3.4 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Wear Resistant
10 Reserves
10.1 Deposits in Eastern Continents
10.1.1 Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
10.1.2 Africa
Namibia, Nigeria, South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
10.1.3 Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela
10.1.4 Others
10.2 Deposits in Western Continents
10.2.1 North America
10.2.2 South America
10.3 Deposits in Oceania Continent
10.3.1 Australia
New South Wales, New Zealand
Not Yet Found