Dolomite

Evaporite

Dolomite and Evaporite

Dolomite

Evaporite

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1 Definition

1.1 Definition

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

A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution

1.2 History

1.2.1 Origin

Southern Alps, France

USA

1.2.2 Discoverer

Dolomieu

Usiglio

1.3 Etymology

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

From a sediment left after the evaporation

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

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

2 Texture

2.1 Texture

Earthy

2.2 Color

Black, Brown, Colourless, Green, Grey, Pink, White

Colourless, Green, Grey, Silver, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.5.2 Stain Resistant

✔ ✘

2.5.3 Wind Resistant

✔ ✘

2.5.4 Acid Resistant

✔ ✘

2.6 Appearance

Glassy or Pearly

Glassy, Vesicular and Foilated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

3.1.2 Exterior Uses

Garden Decoration, Office Buildings

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

3.1.3 Other Architectural Uses

Not Yet Used

Curbing

3.2 Industry

3.2.1 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

3.2.2 Medical Industry

Taken as a Supplement for Calcium or Magnesium

3.3 Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Artifacts

3.4 Other Uses

3.4.1 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)

Used in the manufacture of Ceramic Powder, Used in the preparation of Sulfuric Acid and Silicon Diborite

4 Types

4.1 Types

Boninite and Jasperoid

Not Available

4.2 Features

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

Generally rough to touch, Splintery, Veined

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Present

5 Formation

5.1 Formation

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

Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.

5.2 Composition

5.2.1 Mineral Content

Clay Minerals, Pyrite, Quartz, Sulfides

Calcite, Cancrinite, Gypsum, Kyanite, Magnetite

5.2.2 Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

CaMg(CO₃)₂, CaO, Calcium Sulfate, KCl, MgO, NaCl

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Not Applicable

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Not Applicable

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3.5-42-3

1 7

7.3.2 Grain Size

Medium to Fine Coarse Grained

7.3.3 Fracture

Conchoidal

7.3.4 Streak

White

7.3.5 Porosity

Less Porous

7.3.6 Luster

Vitreous and Pearly

Subvitreous to Dull

7.3.7 Compressive Strength

140.00 N/mm²225.00 N/mm²

0.15 450

7.3.8 Cleavage

Perfect

7.3.9 Toughness

Not Available

7.3.10 Specific Gravity

2.8-32.86-2.99

0 8.4

7.3.11 Transparency

Transparent to Translucent

Translucent

7.3.12 Density

2.8-2.9 g/cm³2.8-2.9 g/cm³

0 1400

7.4 Thermal Properties

7.4.1 Specific Heat Capacity

0.92 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

7.4.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Pressure Resistant

8 Reserves

8.1 Deposits in Eastern Continents

8.1.1 Asia

China, India

Not Available

8.1.2 Africa

Morocco, Namibia

Not Available

8.1.3 Europe

Austria, Italy, Romania, Spain, Switzerland

United Kingdom

8.1.4 Others

Not Yet Found

8.2 Deposits in Western Continents

8.2.1 North America

Mexico, USA

USA

8.2.2 South America

Brazil, Colombia

Colombia, Paraguay

8.3 Deposits in Oceania Continent

8.3.1 Australia

New South Wales, Queensland, Yorke Peninsula

Central Australia, Western Australia

All about Dolomite and Evaporite Properties

Know all about Dolomite and Evaporite properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite and Evaporite belong to Sedimentary Rocks.Texture of Dolomite is Earthy whereas that of Evaporite is Earthy. Dolomite appears Glassy or Pearly and Evaporite appears Glassy, Vesicular and Foilated. The luster of Dolomite is vitreous and pearly while that of Evaporite is subvitreous to dull. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas Evaporite is available in colourless, green, grey, silver, white 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 Evaporite are used in the manufacture of ceramic powder, used in the preparation of sulfuric acid and silicon diborite.