Marl

Kenyte

Marl and Kenyte

Marl

Kenyte

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Definition

Marl is an unconsolidated sedimentary rock consisting of clay and lime

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

History

Origin

Mount Kenya

Discoverer

William Smith

J. W. Gregory

Etymology

From Old French marle, from Late Latin marglia

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

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Earthy

Glassy, Granular

Color

Beige, Brown, Green, Grey, White

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

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles

Decorative Aggregates, Entryways, Homes, Interior Decoration, Kitchens

Exterior Uses

As Building Stone, Roof Tiles

As Building Stone, Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

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

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Soil Conditioner

Cemetery Markers, Creating Artwork

Types

Clay Marl ,Blue Marl, Red Marl, High Bank Marl, Shell Layer Marl, Under Shell Layer Marl, Sand Marl, Green Marl, Grey Marl and Clayey Marl

Foidolite

Features

Generally rough to touch, Is one of the oldest rock, Splintery, Very fine grained rock

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

Marl forms when very fine-grained clay particles are deposited in water which settles at the bottom of water bodies and are compacted by overlying sediment; the water squeezes out and hence forming Marl rock.

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.

Composition

Mineral Content

Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz

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

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

2-35.5-6

1 7

👆🏻

Grain Size

Very fine-grained

Fine Grained

Fracture

Conchoidal

Conchoidal to Uneven

Streak

White

White, Greenish White or Grey

Porosity

Highly Porous

Luster

Dull

Greasy to Dull

Compressive Strength

30.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.6

Specific Gravity

2.2-2.82.6

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

2.4-2.8 g/cm³2.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.80 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Pakistan, Russia

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

Africa

Ethiopia, Kenya, Morocco, South Africa

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

Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

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

Others

Greenland

Deposits in Western Continents

North America

USA

Canada, USA

South America

Colombia, Ecuador, Peru

Brazil, Chile, Colombia, Uruguay, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Victoria, Western Australia

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

All about Marl and Kenyte Properties

Know all about Marl and Kenyte properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Kenyte belongs to Igneous Rocks.Texture of Marl is Earthy whereas that of Kenyte is Glassy, Granular. Marl appears Rough and Dull and Kenyte appears Banded and Foilated. The luster of Marl is dull while that of Kenyte is greasy to dull. Marl is available in beige, brown, green, grey, white colors whereas Kenyte is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Kenyte are cemetery markers, creating artwork.