1 Definition
1.1 Definition
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone
From German Grauwacke, from grau grey + wacke
1.4 Class
Igneous Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
2.2 Color
Brown, Buff, Cream, Green, Grey, Pink, White
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
2.3 Maintenance
2.4 Durability
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
1.0.1 Wind Resistant
1.1.1 Acid Resistant
1.3 Appearance
2 Uses
2.1 Architecture
2.1.1 Interior Uses
Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Interior Decoration, Kitchens
Decorative Aggregates, Floor Tiles, Flooring, Homes, Interior Decoration
2.2.1 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
2.2.2 Other Architectural Uses
Curbing
Curbing, Whetstones
2.3 Industry
2.3.1 Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
2.3.2 Medical Industry
Not Yet Used
Not Yet Used
2.5 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Sculpture, Small Figurines
2.6 Other Uses
2.6.1 Commercial Uses
Cemetery Markers, Creating Artwork
As armour rock for sea walls, Petroleum reservoirs, Sea Defence, Tombstones
3 Types
3.1 Types
Not Available
Not Available
3.2 Features
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Is one of the oldest rock
Available in Lots of Colors and Patterns, Generally rough to touch, Non-vesicular, Veined
3.3 Archaeological Significance
3.3.1 Monuments
3.3.2 Famous Monuments
Data Not Available
Not Applicable
3.3.3 Sculpture
3.3.4 Famous Sculptures
Data Not Available
Data Not Available
3.3.5 Pictographs
3.3.6 Petroglyphs
3.3.8 Figurines
3.4 Fossils
4 Formation
4.1 Formation
Ijolite 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.
Graywacke rock is a type of sedimentary rock, which is also known as immature sandstone, which is indurated, dark grey and consisting of poorly sorted angular to sub-angular, sand-sized grains.
4.2 Composition
4.2.1 Mineral Content
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite
Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
4.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide
Aluminium Oxide, NaCl, CaO, Chromium(III) Oxide, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
4.3 Transformation
4.3.1 Metamorphism
4.3.3 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Not Applicable
4.3.4 Weathering
4.3.5 Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering
4.3.6 Erosion
4.3.8 Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Coastal Erosion, Sea Erosion, Wind Erosion
5 Properties
5.1 Physical Properties
5.1.1 Hardness
5.2.1 Grain Size
Coarse Grained
Angular and Fine
5.2.2 Fracture
Conchoidal to Uneven
Conchoidal
5.2.3 Streak
5.2.4 Porosity
Less Porous
Highly Porous
5.2.5 Luster
5.2.6 Compressive Strength
5.2.7 Cleavage
5.2.8 Toughness
5.2.9 Specific Gravity
5.2.10 Transparency
5.2.11 Density
2.6 g/cm32.6-2.61 g/cm3
0
1400
5.3 Thermal Properties
5.3.1 Specific Heat Capacity
5.3.2 Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
6 Reserves
6.1 Deposits in Eastern Continents
6.1.1 Asia
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
6.1.2 Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Namibia, Nigeria, South Africa
6.1.3 Europe
England, Finland, Germany, Great Britain, Greece, United Kingdom
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
6.1.4 Others
6.2 Deposits in Western Continents
6.2.1 North America
6.2.2 South America
6.3 Deposits in Oceania Continent
6.3.1 Australia
New Zealand, Queensland, Western Australia
New South Wales, New Zealand