Breccia

Greywacke

Breccia and Greywacke

Breccia

Greywacke

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1 Definition

1.1 Definition

Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material

Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay

1.2 History

1.2.1 Origin

England

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From Italian, literally gravel, Germanic origin and related to break

From German Grauwacke, from grau grey + wacke

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Brecciated, Clastic

Clastic

2.2 Color

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

Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, 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

Layered, Banded, Veined and Shiny

Dull

3 Uses

3.1 Architecture

3.1.1 Interior Uses

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

Decorative Aggregates, Floor Tiles, Flooring, Homes, Interior Decoration

3.1.2 Exterior Uses

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

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

3.1.3 Other Architectural Uses

Curbing

Curbing, Whetstones

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Construction Aggregate, Landscaping, Roadstone

Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Sculpture

Artifacts, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Gemstone, Jewelry

As armour rock for sea walls, Petroleum reservoirs, Sea Defence, Tombstones

4 Types

4.1 Types

Collapse Breccia, Fault Breccia, Flow Breccia, Pyroclastic Breccia, Igneous Breccia and Impact Breccia

Not Available

4.2 Features

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

Available in Lots of Colors and Patterns, Generally rough to touch, Non-vesicular, Veined

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Used

4.4 Fossils

Present

5 Formation

5.1 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.

Graywacke rock is a type of sedimentary rock, which is also known as immature sandstone, which is indurated, dark grey and consisting of poorly sorted angular to sub-angular, sand-sized grains.

5.2 Composition

5.2.1 Mineral Content

Calcite, Clay, Feldspar, Phosphates, Quartz, Silica

Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

5.2.2 Compound Content

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Aluminium Oxide, NaCl, CaO, Chromium(III) Oxide, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion

Coastal Erosion, Sea Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

76-7

1 7

6.1.2 Grain Size

Medium to Coarse Grained

Angular and Fine

6.1.3 Fracture

Uneven

Conchoidal

6.1.4 Streak

White

6.1.5 Porosity

Less Porous

Highly Porous

6.1.6 Luster

Dull to Pearly

Dull

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Non-Existent

Perfect

6.1.9 Toughness

Not Available

2.6

6.1.10 Specific Gravity

2.86-2.872.2-2.8

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

0 g/cm³2.6-2.61 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

NANA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, India, Kazakhstan, Mongolia, Russia, South Korea, Uzbekistan

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

7.1.2 Africa

Namibia, Nigeria, South Africa

7.1.3 Europe

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

7.1.4 Others

Greenland

7.2 Deposits in Western Continents

7.2.1 North America

Barbados, Canada, Mexico, Panama, USA

Canada, USA

7.2.2 South America

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand

All about Breccia and Greywacke Properties

Know all about Breccia and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Breccia and Greywacke belong to Sedimentary Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Greywacke is Clastic. Breccia appears Layered, Banded, Veined and Shiny and Greywacke appears Dull. The luster of Breccia is dull to pearly while that of Greywacke is dull. Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors whereas Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Breccia are creating artwork, gemstone, jewelry and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.