Definition
Origin
Discoverer
Etymology
Class
Sub-Class
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Other Categories
Texture
Color
Maintenance
Durability
Water Resistant
Scratch Resistant
Stain Resistant
Wind Resistant
Acid Resistant
Appearance
Interior Uses
Exterior Uses
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Features
Monuments
Famous Monuments
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Famous Sculptures
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Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Hardness
Grain Size
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Specific Heat Capacity
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Asia
Africa
Europe
Others
North America
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Australia
Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine
From the name of a town in Harzburg, Germany
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock
Decorative Aggregates, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Dimension Stone, Cobblestones
Artifacts, Monuments, Sculpture, Small Figurines
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock
Harzburgite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
Chemical Weathering, Mechanical Weathering
Chemical Erosion, Sea Erosion
Heat Resistant, Pressure Resistant, Wear Resistant
Hawaii Islands, Mid-Atlantic Ridge
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
From a Latin word tophous then in Italian tufo and finally tuff
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock
Dull, Vesicular and Foilated
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
Building houses or walls, Construction Aggregate
Artifacts, Monuments, Sculpture, Small Figurines
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.
Always found as volcanic pipes over deep continental crust
Easter Island in the Polynesian Triangle, Pacific Ocean
Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.
Hydrogen Sulfide, Sulfur Dioxide
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Antarctica, Hawaii Islands
Canada, Costa Rica, Panama, USA
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Central Australia, Western Australia