Kenyte and Itacolumite

Kenyte

Itacolumite

Definition

Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix

A yellow sandstone which is flexible when cut into thin strips

History

Origin

Mount Kenya

Unknown

Discoverer

J. W. Gregory

Unknown

Etymology

From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900

From the name of a mountain range where it was found; Itacolumi mountain in Brazil

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Not Applicable

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Texture

Glassy, Granular

Clastic, Granular, Rough

Color

Brown, Buff, Cream, Green, Grey, Pink, White

Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Banded and Foilated

Rough

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens

Exterior Uses

As Building Stone, Garden Decoration, Paving Stone

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics

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

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones

Types

Not Available

Features

Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock

Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Not Used

Petroglyphs

Used

Not Used

Figurines

Used

Fossils

Absent

Present

Formation

Kenyte 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.

Itacolumite is a sedimentary rock which forms from cemented sand-sized clasts and is a type of sandstone.

Composition

Mineral Content

Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite

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

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

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

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism

Not Applicable

Weathering

Yes

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering

Erosion

Yes

Types of Erosion

Chemical Erosion, Coastal Erosion

Chemical Erosion, Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-6

6-7

Grain Size

Fine Grained

Coarse or Fine

Fracture

Conchoidal to Uneven

Conchoidal

Streak

White, Greenish White or Grey

White

Porosity

Highly Porous

Luster

Greasy to Dull

Dull

Compressive Strength

150.00 N/mm²

95.00 N/mm²

Cleavage

Poor

Perfect

Toughness

Not Available

2.6

Specific Gravity

2.6

2.2-2.8

Transparency

Translucent to Opaque

Opaque

Density

2.6 g/cm³

2.2-2.8 g/cm³

Thermal Properties

Specific Heat Capacity

Not Available

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

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

Namibia, Nigeria, South Africa

Europe

Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden

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, Chile, Colombia, Uruguay, Venezuela

Brazil

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Tasmania, Western Australia

New South Wales, New Zealand

Summary >>

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All about Kenyte and Itacolumite Properties

Know all about Kenyte and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Kenyte belongs to Igneous Rocks while Itacolumite belongs to Sedimentary Rocks.Texture of Kenyte is Glassy, Granular whereas that of Itacolumite is Clastic, Granular, Rough. Kenyte appears Banded and Foilated and Itacolumite appears Rough. The luster of Kenyte is greasy to dull while that of Itacolumite is dull. Kenyte is available in brown, buff, cream, green, grey, pink, white colors whereas Itacolumite is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Kenyte are cemetery markers, creating artwork and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.