Marl

Jasperoid

Marl and Jasperoid

Marl

Jasperoid

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Definition

Marl is an unconsolidated sedimentary rock consisting of clay and lime

Jasperoid is a rare, peculiar type of metasomatic alteration of rocks

History

Origin

USA

Discoverer

William Smith

Unknown

Etymology

From Old French marle, from Late Latin marglia

From silica, the main mineral content of Jasperoid

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Earthy

Color

Beige, Brown, Green, Grey, White

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Glassy or Pearly

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Exterior Uses

As Building Stone, Roof Tiles

As Building Stone, Garden Decoration, Office Buildings, 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 a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

Medical Industry

Taken as a Supplement for Calcium or Magnesium

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 a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

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

Features

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

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

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.

Jasperoid is a rare and peculiar type of metasomatic alteration of rocks. It is formed by extreme alteration of wall rocks within a shear zone which may occur in sediments, andesites, trachytes and basalts.

Composition

Mineral Content

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

Clay Minerals, Pyrite, Quartz, Sulfides

Compound Content

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

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

2-33.5-4

1 7

👆🏻

Grain Size

Very fine-grained

Medium to Fine Coarse Grained

Fracture

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Dull

Vitreous and Pearly

Compressive Strength

30.00 N/mm²140.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.6

Specific Gravity

2.2-2.82.8-3

0 8.4

👆🏻

Transparency

Opaque

Transparent to Translucent

Density

2.4-2.8 g/cm³2.8-2.9 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.80 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Pakistan, Russia

China, India

Africa

Ethiopia, Kenya, Morocco, South Africa

Morocco, Namibia

Europe

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

Austria, Italy, Romania, Spain, Switzerland

Others

Deposits in Western Continents

North America

USA

Mexico, USA

South America

Colombia, Ecuador, Peru

Brazil, Colombia

Deposits in Oceania Continent

Australia

New South Wales, Victoria, Western Australia

New South Wales, Queensland, Yorke Peninsula

All about Marl and Jasperoid Properties

Know all about Marl and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Jasperoid belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Jasperoid is Earthy. Marl appears Rough and Dull and Jasperoid appears Glassy or Pearly. The luster of Marl is dull while that of Jasperoid is vitreous and pearly. Marl is available in beige, brown, green, grey, white colors whereas Jasperoid is available in black, brown, green, grey, pink, white colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).