Definition
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay
Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time
Discoverer
Unknown
Unknown
Etymology
From German Grauwacke, from grau grey + wacke
From the Greek marmaros, shining stone and also from the English word marmoreal meaning marble-like
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Group
Not Applicable
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock
Color
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
Black, Blue, Brown, Grey, Pink, White
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Dull
Veined and Shiny
Interior Uses
Decorative Aggregates, Floor Tiles, Flooring, Homes, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
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
Other Architectural Uses
Curbing, Whetstones
Not Yet Used
Construction Industry
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
As Dimension Stone
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Sculpture, Small Figurines
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Commercial Uses
As armour rock for sea walls, Petroleum reservoirs, Sea Defence, Tombstones
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Laboratory bench tops, Paper Industry, Tombstones, Used in aquariums, Whiting material in toothpaste, paint and paper
Types
Not Available
Breccia Marble, Carrara Marble, Calacatta marble, Cultured Marble, Polished Marble, Honed Marble, Sand Marble
Features
Available in Lots of Colors and Patterns, Generally rough to touch, Non-vesicular, Veined
Available in Lots of Colors and Patterns, Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Al Aqsa Mosque in Jerusalem, Buland Darwaza in Agra, India, Capitol Hill Building, Washington DC, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Ephesus in Turkey, Faisal Mosque in Islamabad, Pakistan, Humayun's Tomb in Delhi, India, Jama Masjid in Delhi, India, Lotus Temple in New Delhi, India, Louvre in Paris, France, Mysore Palace in Karnataka, India, Neuschwanstein in Bavaria, Palace of Parliament in Bucharest, Romania, Parthenon in Greece, Potala Palace in Lahasa, Tibet, Prophet’s Mosque in Medina, Qutb Minar in India, Saint Basil's Cathedral in Moscow, Russia, St. Peter’s Cathedral in Vatican City, Taj Mahal in Agra, India, Tower of Pisa, Italy, Victoria Memorial in Kolkata, India, Washington Monument, US
Famous Sculptures
Data Not Available
Ajanta Caves in Maharashtra, India, Bust of Artemis, Elephanta Caves in Maharashtra, India, Lincoln Memorial in America
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Formation
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.
Marble is a metamorphic rock produced from limestone in the earth crust. It is formed by the metamorphism of limestone.
Mineral Content
Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz
Garnet, Graphite, Olivine, Pyrite, Quartz
Compound Content
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
CaO, Iron(III) Oxide, FeO, MgO, Silicon Dioxide
Types of Metamorphism
Not Applicable
Impact Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Coastal Erosion, Sea Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion
Grain Size
Angular and Fine
Medium Grained
Fracture
Conchoidal
Not Available
Porosity
Highly Porous
Less Porous
Luster
Dull
Dull to Pearly to Subvitreous
Compressive Strength
Not Available
Toughness
2.6
Not Available
Specific Gravity
2.2-2.8
2.86-2.87
Transparency
Opaque
Opaque
Density
2.6-2.61 g/cm3
2.4-2.7 g/cm3
Specific Heat Capacity
Not Available
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant
Deposits in Eastern Continents
Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
China, India
Africa
Namibia, Nigeria, South Africa
Namibia
Europe
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Italy, Spain
Others
Greenland
Not Yet Found
Deposits in Western Continents
North America
Canada, USA
Not Yet Found
South America
Brazil
Not Yet Found
Deposits in Oceania Continent
Australia
New South Wales, New Zealand
New South Wales, New Zealand, Queensland, Victoria
All about Greywacke and Marble Properties
Know all about Greywacke and Marble properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Marble belongs to Metamorphic Rocks.Texture of Greywacke is Clastic whereas that of Marble is Granular. Greywacke appears Dull and Marble appears Veined and Shiny. The luster of Greywacke is dull while that of Marble is dull to pearly to subvitreous. Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Marble is available in black, blue, brown, grey, pink, white colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Marble are cemetery markers, commemorative tablets, creating artwork, curling, laboratory bench tops, paper industry, tombstones, used in aquariums, whiting material in toothpaste, paint and paper.