Marl

Shale

Marl vs Shale

Marl

Shale

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1 Definition

1.1 Definition

Marl is an unconsolidated sedimentary rock consisting of clay and lime

Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles

1.2 History

1.2.1 Origin

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From Old French marle, from Late Latin marglia

From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy

Clastic, Splintery

2.2 Color

Beige, Brown, Green, Grey, White

Black, Brown, Buff, Green, Grey, Red, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Rough and Dull

Muddy

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, Roof Tiles

As Building Stone, As Facing Stone, Office Buildings

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

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

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Jewellery, Sculpture, Small Figurines

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Soil Conditioner

Creating Artwork, Pottery

4 Types

4.1 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

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale

4.2 Features

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

Easily splits into thin plates, Generally rough to touch, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Jantar Mantar in India

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

4.4 Fossils

Present

5 Formation

5.1 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.

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.

5.2 Composition

5.2.1 Mineral Content

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

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides

5.2.2 Compound Content

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

Ca, Fe, Mg, Silicon Dioxide, Sodium

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

2-33

1 7

6.1.2 Grain Size

Very fine-grained

6.1.3 Fracture

Conchoidal

Not Available

6.1.4 Streak

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Dull

6.1.7 Compressive Strength

NA95.00 N/mm²

0.15 450

6.1.8 Cleavage

Not Available

Slaty

6.1.9 Toughness

2.6

6.1.10 Specific Gravity

2.2-2.82.2-2.8

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.4-2.8 g/cm³2.4-2.8 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NA0.39 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Pakistan, Russia

Bangladesh, China, India, Russia

7.1.2 Africa

Ethiopia, Kenya, Morocco, South Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

7.1.3 Europe

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

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

USA

7.2.2 South America

Colombia, Ecuador, Peru

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, Victoria, Western Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia

Marl vs Shale Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Marl and Shale Reserves. Marl is an unconsolidated sedimentary rock consisting of clay and lime. Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Marl vs Shale information and Marl vs Shale characteristics in the upcoming sections.

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Marl vs Shale Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Marl vs Shale characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Marl and Properties of Shale. Learn more about Marl vs Shale in the next section. The interior uses of Marl include Decorative aggregates and Floor tiles whereas the interior uses of Shale include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Marl and Shale, they have various applications in construction industry. The uses of Marl in construction industry include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar and that of Shale include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Marl and Shale

Here you can know more about Marl and Shale. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Marl and Shale consists of mineral content and compound content. The mineral content of Marl includes Calcite, Clay, Dolomite, Gypsum, Micas, Pyrite, Quartz and mineral content of Shale includes Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides. You can also check out the list of all Sedimentary Rocks. When we have to compare Marl vs Shale, the texture, color and appearance plays an important role in determining the type of rock. Marl is available in beige, brown, green, grey, white colors whereas, Shale is available in black, brown, buff, green, grey, red, yellow colors. Appearance of Marl is Rough and Dull and that of Shale is Muddy. Properties of rock is another aspect for Marl vs Shale. The hardness of Marl is 2-3 and that of Shale is 3. The types of Marl are 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 whereas types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Marl and Shale is white. The specific heat capacity of Marl is Not Available and that of Shale is 0.39 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Marl is heat resistant, impact resistant whereas Shale is heat resistant, impact resistant.