Definition
Origin
Discoverer
Etymology
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Texture
Color
Maintenance
Durability
Water Resistant
Scratch Resistant
Stain Resistant
Wind Resistant
Acid Resistant
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Exterior Uses
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Monuments
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Famous Sculptures
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Metamorphism
Types of Metamorphism
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Types of Weathering
Erosion
Types of Erosion
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Asia
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North America
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Australia
Rhyolite is a fine-grained igneous rock which is rich in silica
From German Rhyolit, from Greek rhuax lava stream + lithos stone
Coarse Grained Rock, Opaque Rock
Aphanitic, Glassy, Porphyritic
Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens
As Building Stone, As Facing Stone, Paving Stone, Office Buildings
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives
Gemstone, Laboratory bench tops, Jewelry
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.
Acidic in nature, Available in lots of colors
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion
Heat Resistant, Wear Resistant
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Germany, Iceland, Ireland, Italy, Spain
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
New Zealand, Queensland, Western Australia
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
Fine Grained Rock, Opaque Rock
Black, Brown, Green, Grey, White
Decorative Aggregates, Entryways, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Gold and Silver production, Manufacture of Magnesium and Dolomite Refractories
Artifacts, Monuments, Sculpture
Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)
Host Rock for Lead, Zinc and Copper Deposits
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Skarn is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite
Au, CaO, Carbon Dioxide, Cu, Fe, MgO
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
South Africa, Western Africa
Brazil, Colombia, Paraguay
Central Australia, Western Australia