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Breccia
Breccia

Mylonite
Mylonite



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Breccia vs Mylonite

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Definition

Definition

Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism

History

Origin

England
New Zealand

Discoverer

Unknown
Unknown

Etymology

From Italian, literally gravel, Germanic origin and related to break
From Greek mulōn mill + -ite

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Brecciated, Clastic
Foliated

Color

Beige, Black, Blue, Brown, Buff, Green, Grey, Orange, Pink, Purple, Red, Rust, White, Yellow
Black to Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Dull, Banded and Foilated

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Construction Aggregate, Landscaping, Roadstone
for Road Aggregate, Landscaping, Roadstone

Medical Industry

-
-

Antiquity Uses

Artifacts, Sculpture
Artifacts, Monuments

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry
Creating Artwork, Gemstone, Jewelry

Types

Types

Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia
Blastomylonites, Ultramylonites and Phyllonites

Features

Available in Lots of Colors and Patterns, Clasts are smooth to touch
Surfaces are often shiny

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Breccia is a clastic sedimentary rock which is composed of broken fragments of minerals or rock which are cemented together by a fine-grained matrix and it forms where broken, angular fragments of rock or mineral debris accumulate.
Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.

Composition

Mineral Content

Calcite, Clay, Feldspar, Phosphates, Quartz, Silica
Porphyroblasts

Compound Content

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism
-

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion
Chemical Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

73-4
1 7
👆🏻

Grain Size

Medium to Coarse Grained
Fine Grained

Fracture

Uneven
Conchoidal

Streak

White
White

Porosity

Less Porous
Highly Porous

Luster

Dull to Pearly
Shiny

Compressive Strength

180.00 N/mm21.28 N/mm2
0.15 450
👆🏻

Cleavage

-
Conchoidal

Toughness

-
-

Specific Gravity

2.86-2.872.97-3.05
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

0 g/cm32.6-4.8 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K1.50 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan
China, India, Indonesia, Saudi Arabia, South Korea

Africa

Namibia, Nigeria, South Africa
Eritrea, Ethiopia, Ghana, South Africa, Western Africa

Europe

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
England, Finland, France, Germany, Great Britain, Greece, United Kingdom

Others

Greenland
-

Deposits in Western Continents

North America

Barbados, Canada, Mexico, Panama, USA
USA

South America

Brazil
-

Deposits in Oceania Continent

Australia

New South Wales, New Zealand
Central Australia, Western Australia

Breccia vs Mylonite 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 Breccia and Mylonite Reserves. Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material. Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. 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 Breccia vs Mylonite information and Breccia vs Mylonite characteristics in the upcoming sections.

Breccia vs Mylonite 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. Breccia vs Mylonite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Breccia and Properties of Mylonite. Learn more about Breccia vs Mylonite in the next section. The interior uses of Breccia include Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels and Interior decoration whereas the interior uses of Mylonite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Breccia and Mylonite, they have various applications in construction industry. The uses of Breccia in construction industry include As dimension stone, Construction aggregate, Landscaping, Roadstone and that of Mylonite include For road aggregate, Landscaping, Roadstone.

More about Breccia and Mylonite

Here you can know more about Breccia and Mylonite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Breccia and Mylonite consists of mineral content and compound content. The mineral content of Breccia includes Calcite, Clay, Feldspar, Phosphates, Quartz, Silica and mineral content of Mylonite includes Porphyroblasts. You can also check out the list of all Sedimentary Rocks. When we have to compare Breccia vs Mylonite, the texture, color and appearance plays an important role in determining the type of rock. Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors whereas, Mylonite is available in black to grey colors. Appearance of Breccia is Layered, Banded, Veined and Shiny and that of Mylonite is Dull, Banded and Foilated. Properties of rock is another aspect for Breccia vs Mylonite. The hardness of Breccia is 7 and that of Mylonite is 3-4. The types of Breccia are Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia whereas types of Mylonite are Blastomylonites, Ultramylonites and Phyllonites. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Breccia and Mylonite is white. The specific heat capacity of Breccia is 0.84 kJ/Kg K and that of Mylonite is 1.50 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Breccia is heat resistant, impact resistant, pressure resistant, wear resistant whereas Mylonite is heat resistant, impact resistant, pressure resistant.