Diabase

Arkose

Diabase and Arkose

Diabase

Arkose

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Definition

Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar

Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar

History

Origin

Germany

France

Discoverer

Christian Leopold von Buch

Alexandre Brongniart

Etymology

From Greek di + base

From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Aphanitic, Granular

Clastic

Color

Dark Grey to Black

Reddish Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Vesicular

Rough and Dull

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Paving Stone, Office Buildings

Other Architectural Uses

Curbing

Whetstones

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

An Oil and Gas Reservoir, Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

In aquifers, Soil Conditioner, Source of Magnesia (MgO), Tombstones

Types

Dolerite

Arkose

Features

Smooth to touch

Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Stonehenge in English county of Wiltshire

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Diabase forms when molten igneous rock is squeezed up into a vertical crack in other rocks, the crack is usually forced apart and the molten rock cools in the space to form a tabular igneous intrusion cutting across the surrounding rocks and is known as a dike.

Arkose rock forms from the weathering of feldspar-rich igneous or metamorphic rock, most commonly granitic rocks, which are primarily composed of quartz and feldspar.

Composition

Mineral Content

Augite, Chlorite, Olivine, Plagioclase, Pyroxene, Pyrrhotite, Serpentine

Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz

Compound Content

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

76-7

1 7

👆🏻

Grain Size

Fine to Medium Grained

Coarse Grained

Fracture

Conchoidal

Streak

Black

White

Porosity

Highly Porous

Luster

Dull

Compressive Strength

225.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.6

Specific Gravity

2.86-2.870

0 8.4

👆🏻

Transparency

Opaque

Density

2.7-3.3 g/cm³-9999 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.78 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

South Africa, Tanzania

Namibia, Nigeria, South Africa

Europe

Germany, Greece, Italy, Scotland, Turkey

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Others

Antarctica, Greenland

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Brazil, Colombia, Venezuela

Brazil

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland, Western Australia

New South Wales, New Zealand

All about Diabase and Arkose Properties

Know all about Diabase and Arkose properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Arkose belongs to Sedimentary Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Arkose is Clastic. Diabase appears Vesicular and Arkose appears Rough and Dull. The luster of Diabase is while that of Arkose is dull. Diabase is available in dark grey to black colors whereas Arkose is available in reddish brown colors. The commercial uses of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones.