Definition
Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
Origin
Adak, Aleutian Islands
Italy
Discoverer
Defant and Drummond
Marcus Vitruvius Pollio
Etymology
From Adak, Aleutian Islands
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, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Porphyritic
Banded
Color
Black, Brown, Light to Dark Grey
Beige, Black, Blue, Brown, Grey, Red, White, Yellow
Durability
Durable
Durable
Appearance
Dull and Soft
Fibrous
Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Office Buildings
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Whetstones
Curbing
Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
Antiquity Uses
Monuments, Sculpture, Small Figurines
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Commercial Uses
Commemorative Tablets, Pottery, Used in aquariums
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery
Types
Intermediate volcanic rock
Thermal Travertine and Tufa
Features
Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock
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
Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.
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
Olivine, Plagioclase, Pyroxene
Calcite, Clay, Feldspar, Micas, Quartz
Compound Content
Aluminium Oxide, MgO, Silicon Dioxide
Ca, NaCl, CaO, Oxygen
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
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Types of Weathering
Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Coastal Erosion, Sea Erosion, Water Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Grain Size
Fine to Medium Grained
Fine Grained
Fracture
Conchoidal
Splintery
Streak
Bluish Black
White
Porosity
Less Porous
Highly Porous
Luster
Grainy, Pearly and Vitreous
Dull to Pearly
Specific Gravity
-9999
1.68
Transparency
Opaque
Opaque
Density
-9999 g/cm3
2.71 g/cm3
Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
India, Russia
China, Russia
Africa
Ethiopia, Somalia, South Africa
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Europe
Iceland
Austria, Italy, Portugal, United Kingdom
Deposits in Western Continents
North America
Canada, USA
Canada, USA
South America
Brazil
Argentina, Bolivia, Ecuador
Deposits in Oceania Continent
All about Adakite and Travertine Properties
Know all about Adakite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Travertine belongs to Sedimentary Rocks.Texture of Adakite is Porphyritic whereas that of Travertine is Banded. Adakite appears Dull and Soft and Travertine appears Fibrous. The luster of Adakite is grainy, pearly and vitreous while that of Travertine is dull to pearly. Adakite is available in black, brown, light to dark grey colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.