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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Interior Uses
Exterior Uses
Other Architectural Uses
Construction Industry
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Antiquity Uses
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Types
Features
Monuments
Famous Monuments
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Famous Sculptures
Pictographs
Petroglyphs
Figurines
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Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Hardness
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Asia
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North America
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Australia
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock
From the locality in Essex County, Massachusetts,US
Fine Grained Rock, Opaque Rock
Decorative Aggregates, Homes, Interior Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
Artifacts, Monuments, Sculpture, Small Figurines
Cemetery Markers, Commemorative Tablets, Jewelry, Sea Defence, Tombstones
Intermediate volcanic rock
Is one of the oldest rock, Smooth to touch
Essexite is a type of igneous rock, which is usually dark grey to black plutonic rock. For the formation of essexite, suitable magma with exact composition of K, Ba, Rb, Cs, Sr should be produced.
Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene
Aluminium Oxide, Ba, Ca, Cs, Potassium, Rb, Sodium, Sr
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
Biological Weathering, Chemical Weathering
Coastal Erosion, Glacier Erosion, Water Erosion
Impact Resistant, Pressure Resistant, Wear Resistant
Germany, Greece, Italy, Scotland, Turkey
Brazil, Colombia, Venezuela
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