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
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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
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Figurines
Fossils
Formation
Mineral Content
Compound Content
Metamorphism
Types of Metamorphism
Weathering
Types of Weathering
Erosion
Types of Erosion
Hardness
Grain Size
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Porosity
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Specific Heat Capacity
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Asia
Africa
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North America
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Australia
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
Durable Rock, Medium Hardness Rock
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow
Decorative Aggregates, Interior Decoration
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
Creating Artwork, Mirror, Used in aquariums
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian
Blocks negativity, Helps to protect against depression
When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.
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
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Glacier Erosion
Heat Resistant, Impact Resistant
Afghanistan, Indonesia, Japan, Russia
Greece, Hungary, Iceland, Italy, Turkey
Argentina, Chile, Ecuador, Peru
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
From Italian, literally gravel, Germanic origin and related to break
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Beige, Black, Blue, Brown, Buff, Green, Grey, Orange, Pink, Purple, Red, Rust, White, Yellow
Layered, Banded, Veined and Shiny
Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
As Dimension Stone, Construction Aggregate, Landscaping, Roadstone
Creating Artwork, Gemstone, Jewelry
Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia
Available in Lots of Colors and Patterns, Clasts are smooth to touch
Breccia is a clastic sedimentary rock which is composed of broken fragments of minerals or rock which are cemented together by a fine-grained matrix and it forms where broken, angular fragments of rock or mineral debris accumulate.
Calcite, Clay, Feldspar, Phosphates, Quartz, Silica
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
Burial Metamorphism, Cataclastic Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
Namibia, Nigeria, South Africa
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Barbados, Canada, Mexico, Panama, USA
New South Wales, New Zealand