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
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite
Fine Grained Rock, Opaque Rock
Dark Grey to Black, Pink, Red, White
Decorative Aggregates, Homes, Interior Decoration
As Building Stone, Garden Decoration, Office Buildings
Used for flooring, stair treads, borders and window sills.
Artifacts, Monuments, Sculpture
Fire resistant, Used to manufracture paperweights and bookends
Is one of the oldest rock
An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
Heat Resistant, Impact Resistant
Bangladesh, China, India, Russia
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock
Brown, Buff, Cream, Green, Grey, Pink, White
Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics
Artifacts, Monuments, Sculpture
Cemetery Markers, Creating Artwork
Borolanite and Litchfieldite
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock
Nepheline Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Burial Metamorphism, Impact Metamorphism
Biological Weathering, Chemical Weathering
Heat Resistant, Impact Resistant, Wear Resistant
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden
Brazil, Chile, Colombia, Uruguay, Venezuela
New Zealand, Queensland, South Australia, Tasmania, Western Australia