Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Texture
Color
Maintenance
Durability
Water Resistant
Scratch Resistant
Stain Resistant
Wind Resistant
Acid Resistant
Appearance
Interior Uses
Exterior Uses
Other Architectural Uses
Construction Industry
Medical Industry
Antiquity Uses
Commercial Uses
Types
Features
Monuments
Famous Monuments
Sculpture
Famous Sculptures
Pictographs
Petroglyphs
Figurines
Fossils
Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Hardness
Grain Size
Fracture
Streak
Porosity
Luster
Compressive Strength
Cleavage
Toughness
Specific Gravity
Transparency
Density
Specific Heat Capacity
Resistance
Asia
Africa
Europe
Others
North America
South America
Australia
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay
From German Grauwacke, from grau grey + wacke
Fine Grained Rock, Opaque Rock
Beige, Black, Brown, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
Decorative Aggregates, Floor Tiles, Flooring, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
Artifacts, Sculpture, Small Figurines
As armour rock for sea walls, Petroleum reservoirs, Sea Defence, Tombstones
Available in Lots of Colors and Patterns, Generally rough to touch, Non-vesicular, Veined
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.
Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
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
Biological Weathering, Chemical Weathering
Coastal Erosion, Sea Erosion, Wind Erosion
Heat Resistant, Impact Resistant, Pressure Resistant
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
Namibia, Nigeria, South Africa
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
New South Wales, New Zealand
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
From 17th century, because of its greasy feel and use like a soap
Fine Grained Rock, Opaque Rock
Black, Black to Grey, Green, Grey
Dull, Banded and Foilated
Bathrooms, Decorative Aggregates, Homes, Interior Decoration
As Facing Stone, Garden Decoration
Manufacture of Magnesium and Dolomite Refractories
Taken as a Supplement for Calcium or Magnesium
Artifacts, Jewellery, Monuments, Sculpture
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Production of Lime, Source of Magnesia (MgO)
Christ the Redeemer in Rio de Janeiro, Stonehenge in English county of Wiltshire
Soapstone is a talc-schist, which is a type of metamorphic rock and it is largely composed of the mineral talc and is thus rich inmagnesium.
Albite, Apatite, Biotite, Calcite, Carbonate, Clay Minerals, Hornblende, Ilmenite, Micas, Plagioclase, Pyroxene, Quartz
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Heat Resistant, Pressure Resistant
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
Egypt, Ethiopia, Ghana, South Africa, Western Africa
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom
Central Australia, New Zealand, Queensland