Kenyte and Skarn

Kenyte

Skarn

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

Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin

History

Origin

Mount Kenya

USA, Australia

Discoverer

J. W. Gregory

Tornebohm

Etymology

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

From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Not Applicable

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Glassy, Granular

Earthy, Mud-rich, Rough

Color

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

Black, Brown, Colourless, Green, Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Wind Resistant

Yes

Acid Resistant

Yes

Appearance

Banded and Foilated

Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Entryways, Interior Decoration

Exterior Uses

As Building Stone, Garden Decoration, Paving Stone

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

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

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, Gold and Silver production, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Not Yet Used

Not Applicable

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)

Types

Not Available

Endoskarns

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

Host Rock for Lead, Zinc and Copper Deposits

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

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.

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Skarn is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Composition

Mineral Content

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

Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite

Compound Content

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

Au, CaO, Carbon Dioxide, Cu, Fe, MgO

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Yes

Types of Weathering

Biological Weathering

Not Applicable

Erosion

Yes

Types of Erosion

Chemical Erosion, Coastal Erosion

Not Applicable

Properties

Physical Properties

Hardness

5.5-6

6.5

Grain Size

Fine Grained

Fracture

Conchoidal to Uneven

Irregular

Streak

White, Greenish White or Grey

Light to dark brown

Porosity

Highly Porous

Less Porous

Luster

Greasy to Dull

Waxy and Dull

Compressive Strength

150.00 N/mm²

Not Available

Cleavage

Poor

Slaty

Toughness

Not Available

2.4

Specific Gravity

2.6

2.86

Transparency

Translucent to Opaque

Opaque

Density

2.6 g/cm³

2.8-2.9 g/cm³

Thermal Properties

Specific Heat Capacity

Not Available

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

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

China, India, Russia, Saudi Arabia, South Korea, Sri Lanka

Africa

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

South Africa, Western Africa

Europe

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

United Kingdom

Others

Greenland

Not Yet Found

Deposits in Western Continents

North America

Canada, USA

Canada

South America

Brazil, Chile, Colombia, Uruguay, Venezuela

Brazil, Colombia, Paraguay

Deposits in Oceania Continent

Australia

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

Central Australia, Western Australia

Summary >>

<< Reserves

All about Kenyte and Skarn Properties

Know all about Kenyte and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Kenyte belongs to Igneous Rocks while Skarn belongs to Metamorphic Rocks.Texture of Kenyte is Glassy, Granular whereas that of Skarn is Earthy, Mud-rich, Rough. Kenyte appears Banded and Foilated and Skarn appears Dull. The luster of Kenyte is greasy to dull while that of Skarn is waxy and dull. Kenyte is available in brown, buff, cream, green, grey, pink, white colors whereas Skarn is available in black, brown, colourless, green, grey, white colors. The commercial uses of Kenyte are cemetery markers, creating artwork and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).