Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
  
Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters
  
History
  
  
Origin
Pennsylvania, U.S.
  
Italy
  
Discoverer
Unknown
  
Marcus Vitruvius Pollio
  
Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
  
From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy
  
Class
Metamorphic Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Not Applicable
  
Not Applicable
  
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Amorphous, Glassy
  
Banded
  
Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey
  
Beige, Black, Blue, Brown, Grey, Red, White, Yellow
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
No
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
Yes
  
Appearance
Veined or Pebbled
  
Fibrous
  
Architecture
  
  
Interior Uses
Not Yet Used
  
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
  
Exterior Uses
Not Yet Used
  
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production
  
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar
  
Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins
  
Not Yet Used
  
Antiquity Uses
Not Yet Used
  
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
  
Other Uses
  
  
Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry
  
Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Paper Industry, Pottery
  
Types
Semi-anthracite and Meta-anthracite
  
Not Available
  
Features
Helps in production of Heat and Electricity, Used as fossil fuel
  
Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Used
  
Famous Monuments
Not Applicable
  
Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy
  
Sculpture
Not Yet Used
  
Used
  
Famous Sculptures
Not Applicable
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Not Yet Used
  
Used
  
Fossils
Absent
  
Present
  
Formation
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.
  
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.
  
Composition
  
  
Mineral Content
Calcite, Clay, Clay Minerals
  
Calcite, Clay, Feldspar, Micas, Quartz
  
Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
  
Ca, NaCl, CaO, Oxygen
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Not Applicable
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
No
  
Yes
  
Types of Erosion
Not Applicable
  
Chemical Erosion, Coastal Erosion, Glacier Erosion
  
Physical Properties
  
  
Hardness
1-1.5
  
3-4
  
Grain Size
Medium to Fine Coarse Grained
  
Fine Grained
  
Fracture
Conchoidal
  
Splintery
  
Streak
Black
  
White
  
Porosity
Less Porous
  
Highly Porous
  
Luster
Shiny
  
Dull to Pearly
  
Compressive Strength
Not Available
  
80.00 N/mm
2
  
23
Cleavage
Non-Existent
  
Non-Existent
  
Toughness
Not Available
  
1
  
Specific Gravity
1.1-1.4
  
1.68
  
Transparency
Opaque
  
Opaque
  
Density
1.25-2.5 g/cm3
  
2.71 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
1.32 kJ/Kg K
  
4
1.09 kJ/Kg K
  
8
Resistance
Heat Resistant, Water Resistant
  
Impact Resistant, Pressure Resistant, Wear Resistant
  
Deposits in Eastern Continents
  
  
Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
  
China, Russia
  
Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
  
Not Yet Found
  
Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
  
Austria, Italy, Portugal, United Kingdom
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada, Mexico, USA
  
Canada, USA
  
South America
Brazil, Chile, Colombia, Venezuela
  
Argentina, Bolivia, Ecuador
  
Deposits in Oceania Continent
  
  
Australia
New South Wales, Queensland, Victoria
  
Not Yet Found
  
All about Anthracite and Travertine Properties
Know all about Anthracite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Travertine belongs to Sedimentary Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Travertine is Banded. Anthracite appears Veined or Pebbled and Travertine appears Fibrous. The luster of Anthracite is shiny while that of Travertine is dull to pearly. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Anthracite are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.