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
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance
From Latin varius, speckled, variegated
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
Black, Brown, Light to Dark Grey
Floor Tiles, Flooring, Homes, Hotels, Kitchens
Garden Decoration, Office Buildings
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
Artifacts, Monuments, Sculpture
Cemetery Markers, Creating Artwork
Has High structural resistance against erosion and climate, Very fine grained rock
Variolites are a group of dark green basic igneous rocks that exhibit pale colored spots on weathered surfaces that give them a pockmarked appearance.
Olivine, Plagioclase, Pyroxene
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Heat Resistant, Pressure Resistant, Wear Resistant
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature
From French schiste, Greek skhistos i.e. split
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Blue, Bluish - Grey, Purple, Shades of Blue
Floor Tiles, Flooring, Homes, Hotels, Kitchens
Garden Decoration, Office Buildings
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
Artifacts, Monuments, Sculpture
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones
Has High structural resistance against erosion and climate, Very fine grained rock
Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion
Impact Resistant, Pressure Resistant
Egypt, Ethiopia, South Africa