Dolomite

Pantellerite

Dolomite and Pantellerite

Dolomite

Pantellerite

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Definition

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

Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite

History

Origin

Southern Alps, France

Strait of sicily

Discoverer

Dolomieu

Unknown

Etymology

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

From Pantelleria, a volcanic island in the Strait of Sicily

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

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

Fine Grained Rock, Opaque Rock

Texture

Earthy

Eutaxitic

Color

Black, Brown, Green, Grey, Pink, White

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy or Pearly

Layered and Foliated

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

Garden Decoration, Office Buildings

Other Architectural Uses

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

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Artifacts, Sculpture

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)

Creating Artwork

Types

Boninite and Jasperoid

Pantelleritic Ignimbrite

Features

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

High Fe content

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

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

Pantellerite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Clay Minerals, Pyrite, Quartz, Sulfides

Amphibole, Feldspar, Ilmenite

Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Al, Fe

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

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

Properties

Physical Properties

Hardness

3.5-46-7

1 7

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Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Conchoidal

Sub-conchoidal

Streak

White

Porosity

Less Porous

Luster

Vitreous and Pearly

Earthy

Compressive Strength

140.00 N/mm²210.00 N/mm²

0.15 450

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Cleavage

Perfect

Conchoidal

Toughness

Specific Gravity

2.8-3-9999

0 8.4

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Transparency

Transparent to Translucent

Translucent to Opaque

Density

2.8-2.9 g/cm³-9999 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

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Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India

Africa

Morocco, Namibia

Angola, Egypt, Madagascar, Namibia, Nigeria

Europe

Austria, Italy, Romania, Spain, Switzerland

Germany, Iceland, Ireland, Italy, Spain, United Kingdom

Others

Deposits in Western Continents

North America

Mexico, USA

Canada, USA

South America

Brazil, Colombia

Argentina, Bolivia, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula

Central Australia, Queensland, Western Australia

All about Dolomite and Pantellerite Properties

Know all about Dolomite and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite belongs to Sedimentary Rocks while Pantellerite belongs to Igneous Rocks.Texture of Dolomite is Earthy whereas that of Pantellerite is Eutaxitic. Dolomite appears Glassy or Pearly and Pantellerite appears Layered and Foliated. The luster of Dolomite is vitreous and pearly while that of Pantellerite is earthy. Dolomite is available in black, brown, green, grey, pink, white colors whereas Pantellerite is available in dark greenish - grey 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 Pantellerite are creating artwork.