Mylonite

Mudstone

Mylonite and Mudstone

Mylonite

Mudstone

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1 Definition

1.1 Definition

Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism

Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations

1.2 History

1.2.1 Origin

New Zealand

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From Greek mulōn mill + -ite

From the English mud and stone, from low German mudde and stainaz

1.4 Class

Metamorphic Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Foliated

Clastic

2.2 Color

Black to Grey

Black, Blue, Brown, Green, Grey, Orange, Red, White, 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

Dull, Banded and Foilated

Rough and Dull

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Entryways, Floor Tiles, Interior Decoration

3.1.2 Exterior Uses

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

As Building Stone, As Facing Stone, Paving Stone, Roof Tiles

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

for Road Aggregate, Landscaping, Roadstone

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, Monuments

Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Gemstone, Jewelry

Creating Artwork, Pottery

4 Types

4.1 Types

Blastomylonites, Ultramylonites and Phyllonites

Marl, Shale and Argillite

4.2 Features

Surfaces are often shiny

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

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

Absent

Present

5 Formation

5.1 Formation

Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.

Mudstone forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are buried and compacted by overlying sediment hence forming mudstone.

5.2 Composition

5.2.1 Mineral Content

Porphyroblasts

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

5.2.2 Compound Content

Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide

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

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, Mechanical Weathering

Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion, Wind Erosion

Chemical Erosion, Sea Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3-42-3

1 7

6.1.2 Grain Size

Fine Grained

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

Shiny

Dull

6.1.7 Compressive Strength

1.28 N/mm²NA

0.15 450

6.1.8 Cleavage

Conchoidal

Perfect

6.1.9 Toughness

Not Available

2.6

6.1.10 Specific Gravity

2.97-3.052.2-2.8

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.6-4.8 g/cm³2.4-2.8 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

1.50 kJ/Kg K0.39 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, India, Indonesia, Saudi Arabia, South Korea

Bangladesh, China, India, Russia

7.1.2 Africa

Eritrea, Ethiopia, Ghana, South Africa, Western Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

7.1.3 Europe

England, Finland, France, Germany, Great Britain, Greece, United Kingdom

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

Not Yet Found

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

7.3 Deposits in Oceania Continent

7.3.1 Australia

Central Australia, Western Australia

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

All about Mylonite and Mudstone Properties

Know all about Mylonite and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Mylonite belongs to Metamorphic Rocks while Mudstone belongs to Sedimentary Rocks.Texture of Mylonite is Foliated whereas that of Mudstone is Clastic. Mylonite appears Dull, Banded and Foilated and Mudstone appears Rough and Dull. The luster of Mylonite is shiny while that of Mudstone is dull. Mylonite is available in black to grey colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Mylonite are creating artwork, gemstone, jewelry and that of Mudstone are creating artwork, pottery.