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Definition

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

History

Origin
France

Discoverer
Alexandre Brongniart

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

Class
Sedimentary Rocks

Sub-Class
Durable Rock, Hard Rock

Family

Group
-

Other Categories
Coarse Grained Rock, Opaque Rock

Texture

Texture
Clastic

Color
Reddish Brown

Maintenance
Less

Durability
Durable

Water Resistant
Yes

Scratch Resistant
Yes

Stain Resistant
Yes

Wind Resistant
No

Acid Resistant
Yes

Appearance
Rough and Dull

Uses

Architecture

Interior Uses
Decorative Aggregates, Homes, Interior Decoration

Exterior Uses
Paving Stone, Office Buildings

Other Architectural Uses
Whetstones

Industry

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

Medical Industry
-

Antiquity Uses
Artifacts, Sculpture, Small Figurines

Other Uses

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

Types

Types
Arkose

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

Archaeological Significance

Monuments
-

Famous Monuments
-

Sculpture
-

Famous Sculptures
-

Pictographs
-

Petroglyphs
-

Figurines
-

Fossils
Present

Formation

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

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

Transformation

Metamorphism
No

Types of Metamorphism
-

Weathering
Yes

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion
Yes

Types of Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness
6-7

Grain Size
Coarse Grained

Fracture
Conchoidal

Streak
White

Porosity
Highly Porous

Luster
Dull

Compressive Strength
80.00 N/mm2 33

Cleavage
-

Toughness
-

Specific Gravity
0

Transparency
Opaque

Density
-9999 g/cm3

Thermal Properties

Specific Heat Capacity
0.78 kJ/Kg K 18

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa
Namibia, Nigeria, South Africa

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

Others
Greenland

Deposits in Western Continents

North America
Canada, USA

South America
Brazil

Deposits in Oceania Continent

Australia
New South Wales, New Zealand

Definition >>
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Sedimentary Rocks

Information about Arkose

Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Arkose Uses. We have provided you with all information about Arkose rock here. Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. Arkose is available in reddish brown colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Arkose is white. Get to know more about Arkose rock and characteristics of Arkose rock in the next sections.

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