Marl

Quartzite

Marl and Quartzite

Marl

Quartzite

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Definition

Marl is an unconsolidated sedimentary rock consisting of clay and lime

Quartzite is a non-foliated metamorphic rock that forms by the metamorphism of pure quartz Sandstone

History

Origin

Discoverer

William Smith

Unknown

Etymology

From Old French marle, from Late Latin marglia

From quartz + -ite

Class

Sedimentary Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Medium Grained Rock, Opaque Rock

Texture

Earthy

Foliated, Granular

Color

Beige, Brown, Green, Grey, White

Black, Blue, Brown, Green, Light Grey, Purple, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Lustrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles

Countertops, Decorative Aggregates, Flooring, Homes

Exterior Uses

As Building Stone, Roof Tiles

As Building Stone, As Facing 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

Arrowheads, As Dimension Stone, Cement Manufacture, Construction Aggregate, Cutting Tool, for Road Aggregate, Making natural cement, Production of Glass and Ceramics, Rail Track Ballast, Roadstone

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Soil Conditioner

An Oil and Gas Reservoir, As armour rock for sea walls, Cemetery Markers, Commemorative Tablets, In aquifers, Laboratory bench tops, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones, Used in aquariums

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

Orthoquartzite and Metaquartzite

Features

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

Generally rough to touch, 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.

Quartzite forms from sandstone and the mineral quartz being put under extreme heat and pressure.

Composition

Mineral Content

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

Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz

Compound Content

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

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal 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, Wind Erosion

Properties

Physical Properties

Hardness

2-36-7

1 7

👆🏻

Grain Size

Very fine-grained

Medium Grained

Fracture

Conchoidal

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Dull

Vitreous

Compressive Strength

30.00 N/mm²115.00 N/mm²

0.15 450

👆🏻

Cleavage

Indiscernible

Toughness

2.6

1.9

Specific Gravity

2.2-2.82.6-2.8

0 8.4

👆🏻

Transparency

Opaque

Transparent to Translucent

Density

2.4-2.8 g/cm³2.32-2.42 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.80 kJ/Kg K0.75 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Pakistan, Russia

China, India, Israel, Russia, South Korea, Thailand, Turkey

Africa

Ethiopia, Kenya, Morocco, South Africa

Ethiopia, Morocco, South Africa, Zimbabwe

Europe

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

England, Italy, Norway, Scotland, Sweden, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

USA

Bahamas, Canada, USA

South America

Colombia, Ecuador, Peru

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Victoria, Western Australia

New Zealand, Queensland, Western Australia

All about Marl and Quartzite Properties

Know all about Marl and Quartzite properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Quartzite belongs to Metamorphic Rocks.Texture of Marl is Earthy whereas that of Quartzite is Foliated, Granular. Marl appears Rough and Dull and Quartzite appears Lustrous. The luster of Marl is dull while that of Quartzite is vitreous. Marl is available in beige, brown, green, grey, white colors whereas Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Quartzite are an oil and gas reservoir, as armour rock for sea walls, cemetery markers, commemorative tablets, in aquifers, laboratory bench tops, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.