Dolomite

Travertine

Dolomite and Travertine

Dolomite

Travertine

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Definition

Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight

Travertine is a mineral consisting of layered calcium carbonate formed by deposition from spring waters

History

Origin

Southern Alps, France

Italy

Discoverer

Dolomieu

Marcus Vitruvius Pollio

Etymology

From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock

From Italian travertino a kind of building stone, from Tiburs, adjective from Tibur (Tivoli), in Italy

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Earthy

Banded

Color

Black, Brown, Green, Grey, Pink, White

Beige, Black, Blue, Brown, Grey, Red, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy or Pearly

Fibrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

Garden Decoration, Office Buildings

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

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

Types

Boninite and Jasperoid

Thermal Travertine and Tufa

Features

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

Stalactites and stalagmites are formed from this rock, Surfaces are often shiny, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Colosseum in Rome, Italy, Sacré Coeur in Paris, France, Trevi Fountain in Rome, Italy

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.

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

Clay Minerals, Pyrite, Quartz, Sulfides

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Ca, NaCl, CaO, Oxygen

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

3.5-43-4

1 7

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Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Conchoidal

Splintery

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Vitreous and Pearly

Dull to Pearly

Compressive Strength

140.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

Specific Gravity

2.8-31.68

0 8.4

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Transparency

Transparent to Translucent

Opaque

Density

2.8-2.9 g/cm³2.71 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K1.09 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India

China, Russia

Africa

Morocco, Namibia

Europe

Austria, Italy, Romania, Spain, Switzerland

Austria, Italy, Portugal, United Kingdom

Others

Deposits in Western Continents

North America

Mexico, USA

Canada, USA

South America

Brazil, Colombia

Argentina, Bolivia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula

All about Dolomite and Travertine Properties

Know all about Dolomite and Travertine properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite and Travertine belong to Sedimentary Rocks.Texture of Dolomite is Earthy whereas that of Travertine is Banded. Dolomite appears Glassy or Pearly and Travertine appears Fibrous. The luster of Dolomite is vitreous and pearly while that of Travertine is dull to pearly. Dolomite is available in black, brown, green, grey, pink, white colors whereas Travertine is available in beige, black, blue, brown, grey, red, white, yellow colors. The commercial uses of Dolomite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Travertine are cemetery markers, creating artwork, gemstone, jewelry, paper industry, pottery.