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Dolomite
Dolomite

Rhyolite
Rhyolite



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Dolomite vs Rhyolite

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Definition

Definition

Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
Rhyolite is a fine-grained igneous rock which is rich in silica

History

Origin

Southern Alps, France
North America

Discoverer

Dolomieu
Ferdinand von Richthofen

Etymology

From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock
From German Rhyolit, from Greek rhuax lava stream + lithos stone

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
Coarse Grained Rock, Opaque Rock

Texture

Texture

Earthy
Aphanitic, Glassy, Porphyritic

Color

Black, Brown, Green, Grey, Pink, White
Grey, White, Light Black

Maintenance

Less
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy or Pearly
Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Hotels, Interior Decoration, Kitchens

Exterior Uses

Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Paving Stone, 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
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives

Medical Industry

Taken as a Supplement for Calcium or Magnesium
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Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Artifacts

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)
Gemstone, Laboratory bench tops, Jewelry

Types

Types

Boninite and Jasperoid
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.

Features

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits
Acidic in nature, Available in lots of colors

Archaeological Significance

Monuments

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-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.

Composition

Mineral Content

Clay Minerals, Pyrite, Quartz, Sulfides
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz

Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

-
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-46-7
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Large and Coarse Grained

Fracture

Conchoidal
Sub-conchoidal

Streak

White
-

Porosity

Less Porous
Highly Porous

Luster

Vitreous and Pearly
Earthy

Compressive Strength

140.00 N/mm2140.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

1
2

Specific Gravity

2.8-32.65-2.67
0 8.4
👆🏻

Transparency

Transparent to Translucent
Opaque

Density

2.8-2.9 g/cm32.4-2.6 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.71 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India
China, India

Africa

Morocco, Namibia
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

Austria, Italy, Romania, Spain, Switzerland
Germany, Iceland, Ireland, Italy, Spain

Others

-
-

Deposits in Western Continents

North America

Mexico, USA
Canada, USA

South America

Brazil, Colombia
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula
New Zealand, Queensland, Western Australia

Dolomite vs Rhyolite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Dolomite and Rhyolite Reserves. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Rhyolite is a fine-grained igneous rock which is rich in silica. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Dolomite vs Rhyolite information and Dolomite vs Rhyolite characteristics in the upcoming sections.

Dolomite vs Rhyolite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Dolomite vs Rhyolite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dolomite and Properties of Rhyolite. Learn more about Dolomite vs Rhyolite in the next section. The interior uses of Dolomite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Rhyolite include Decorative aggregates, Homes, Hotels, Interior decoration and Kitchens. Due to some exceptional properties of Dolomite and Rhyolite, they have various applications in construction industry. The uses of Dolomite in construction industry include 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 and that of Rhyolite include Arrowheads, As dimension stone, Building houses or walls, Construction aggregate, Cutting tool, For road aggregate, Knives.

More about Dolomite and Rhyolite

Here you can know more about Dolomite and Rhyolite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dolomite and Rhyolite consists of mineral content and compound content. The mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Rhyolite includes Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Dolomite vs Rhyolite, the texture, color and appearance plays an important role in determining the type of rock. Dolomite is available in black, brown, green, grey, pink, white colors whereas, Rhyolite is available in grey, white, light black colors. Appearance of Dolomite is Glassy or Pearly and that of Rhyolite is Banded. Properties of rock is another aspect for Dolomite vs Rhyolite. The hardness of Dolomite is 3.5-4 and that of Rhyolite is 6-7. The types of Dolomite are Boninite and Jasperoid whereas types of Rhyolite are Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dolomite is white while that of Rhyolite is . The specific heat capacity of Dolomite is 0.92 kJ/Kg K and that of Rhyolite is 0.71 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Dolomite is heat resistant, pressure resistant, wear resistant whereas Rhyolite is heat resistant, wear resistant.