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Travertine and Trachyte


Trachyte and Travertine


Definition

Definition
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters   
Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar   

History
  
  

Origin
Italy   
Unknown   

Discoverer
Marcus Vitruvius Pollio   
Alexandre Brongniart and René Just Haüy   

Etymology
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy   
From Greek trakhus rough’ or trakhutēs roughness   

Class
Sedimentary Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Volcanic   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Banded   
Aphanitic to Porphyritic   

Color
Beige, Black, Blue, Brown, Grey, Red, White, Yellow   
Black, Brown, Dark Greenish - Grey, Green, Grey, Light to Dark Grey, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
Yes   
No   

Appearance
Fibrous   
Banded   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   
Decorative Aggregates, Flooring, Homes, Interior Decoration   

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings   
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings   

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar   
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery   
Cemetery Markers, Creating Artwork   

Types

Types
Not Available   
Not Available   

Features
Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock   
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Present   
Absent   

Formation

Formation
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.   
Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite rock and forms as a result of magmatic differentiation.   

Composition
  
  

Mineral Content
Calcite, Clay, Feldspar, Micas, Quartz   
Augite, Biotite, Feldspar, Hornblade, Plagioclase, Quartz   

Compound Content
Ca, NaCl, CaO, Oxygen   
Potassium Oxide, Sodium Oxide, Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
3-4   
6   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Splintery   
Not Available   

Streak
White   
White   

Porosity
Highly Porous   
Less Porous   

Luster
Dull to Pearly   
Metallic   

Compressive Strength
80.00 N/mm2   
23
150.00 N/mm2   
14

Cleavage
Non-Existent   
Not Available   

Toughness
1   
Not Available   

Specific Gravity
1.68   
2.7   

Transparency
Opaque   
Opaque   

Density
2.71 g/cm3   
2.43-2.45 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.09 kJ/Kg K   
8
Not Available   

Resistance
Impact Resistant, Pressure Resistant, Wear Resistant   
Heat Resistant, Impact Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, Russia   
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam   

Africa
Not Yet Found   
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   

Europe
Austria, Italy, Portugal, United Kingdom   
Bulgaria, England, Germany, Norway, Romania, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
USA   

South America
Argentina, Bolivia, Ecuador   
Brazil, Chile   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
New Zealand, Queensland, South Australia, Western Australia   

Summary >>
<< Reserves

All about Travertine and Trachyte Properties

Know all about Travertine and Trachyte properties here. All properties of rocks are important as they define the type of rock and its application. Travertine belongs to Sedimentary Rocks while Trachyte belongs to Igneous Rocks.Texture of Travertine is Banded whereas that of Trachyte is Aphanitic to Porphyritic. Travertine appears Fibrous and Trachyte appears Banded. The luster of Travertine is dull to pearly while that of Trachyte is metallic. Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors whereas Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, white colors. The commercial uses of Travertine and Trachyte are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.

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