Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
Discoverer
Unknown
Marcus Vitruvius Pollio
Etymology
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Color
Black, Brown, Dark Grey to Black, Red
Beige, Black, Blue, Brown, Grey, Red, White, Yellow
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Glassy and Vesicular
Fibrous
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Curbing
Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, In landscaping and drainage works
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Commercial Uses
As a traction material on snow-covered roads, Creating Artwork, High-temperature insulation, In gas barbecue grills
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery
Types
Basaltic Scoria and Andesitic Scoria
Thermal Travertine and Tufa
Features
Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny
Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock
Archaeological Significance
Famous Monuments
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Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy
Formation
Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.
Travertine is a type of sedimentary rock formed when a river carries or transports pieces of broken rock which then undergo sedimentation. They are then subjected to high temperature and pressure hence forming travertine rock.
Mineral Content
Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica
Calcite, Clay, Feldspar, Micas, Quartz
Compound Content
Ca, NaCl
Ca, NaCl, CaO, Oxygen
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
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Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Grain Size
Fine Grained
Fine Grained
Fracture
Conchoidal
Splintery
Porosity
Highly Porous
Highly Porous
Luster
Subvitreous to Dull
Dull to Pearly
Specific Gravity
-9999
1.68
Transparency
Opaque
Opaque
Density
-9999 g/cm3
2.71 g/cm3
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
Afghanistan, Indonesia, Japan, Russia
China, Russia
Africa
Ethiopia, Kenya, Tanzania
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Europe
Greece, Hungary, Iceland, Italy, Turkey
Austria, Italy, Portugal, United Kingdom
Deposits in Western Continents
North America
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
Canada, USA
South America
Argentina, Chile, Ecuador, Peru
Argentina, Bolivia, Ecuador
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
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All about Scoria and Travertine Properties
Know all about Scoria and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Travertine belongs to Sedimentary Rocks.Texture of Scoria is Vesicular whereas that of Travertine is Banded. Scoria appears Glassy and Vesicular and Travertine appears Fibrous. The luster of Scoria is subvitreous to dull while that of Travertine is dull to pearly. Scoria is available in black, brown, dark grey to black, red colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.