Greywacke

Pantellerite

Greywacke and Pantellerite

Greywacke

Pantellerite

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1 Definition

1.1 Definition

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

Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite

1.2 History

1.2.1 Origin

Unknown

Strait of sicily

1.2.2 Discoverer

Unknown

1.3 Etymology

From German Grauwacke, from grau grey + wacke

From Pantelleria, a volcanic island in the Strait of Sicily

1.4 Class

Sedimentary Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Clastic

Eutaxitic

2.2 Color

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

Dark Greenish - Grey

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

Layered and Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

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

Not Yet Used

3.1.2 Exterior Uses

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

Not Yet Used

3.1.3 Other Architectural Uses

Curbing, Whetstones

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

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, Small Figurines

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

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

Creating Artwork

4 Types

4.1 Types

Not Available

Pantelleritic Ignimbrite

4.2 Features

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

High Fe content

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Present

Absent

5 Formation

5.1 Formation

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.

Pantellerite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

1.2 Composition

1.2.1 Mineral Content

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

Amphibole, Feldspar, Ilmenite

1.3.2 Compound Content

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

Al, Fe

1.4 Transformation

1.4.2 Metamorphism

✔ ✘

1.6.1 Types of Metamorphism

Not Applicable

Burial Metamorphism, Cataclastic Metamorphism

1.6.2 Weathering

✔ ✘

1.7.2 Types of Weathering

Biological Weathering, Chemical Weathering

1.8.1 Erosion

✔ ✘

2.1.1 Types of Erosion

Coastal Erosion, Sea Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

3 Properties

3.2 Physical Properties

3.2.1 Hardness

6-76-7

1 7

6.3.6 Grain Size

Angular and Fine

Fine Grained

6.3.8 Fracture

Conchoidal

Sub-conchoidal

7.1.2 Streak

White

Unknown

7.1.3 Porosity

Highly Porous

Less Porous

7.1.4 Luster

Dull

Earthy

7.1.5 Compressive Strength

NANA

0.15 450

7.1.12 Cleavage

Perfect

Conchoidal

7.1.13 Toughness

2.6

7.1.14 Specific Gravity

2.2-2.8Not Available

0 8.4

7.1.18 Transparency

Opaque

Translucent to Opaque

7.1.19 Density

2.6-2.61 g/cm³Not Available

0 1400

7.2 Thermal Properties

7.2.1 Specific Heat Capacity

NANA

0.14 3.2

7.3.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant

8 Reserves

8.1 Deposits in Eastern Continents

8.1.1 Asia

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

China, India

8.1.2 Africa

Namibia, Nigeria, South Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

8.1.3 Europe

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

Germany, Iceland, Ireland, Italy, Spain, United Kingdom

8.1.4 Others

Greenland

Not Yet Found

8.2 Deposits in Western Continents

8.2.1 North America

Canada, USA

8.2.2 South America

Brazil

Argentina, Bolivia, Brazil, Colombia, Ecuador

8.3 Deposits in Oceania Continent

8.3.1 Australia

New South Wales, New Zealand

Central Australia, Queensland, Western Australia

All about Greywacke and Pantellerite Properties

Know all about Greywacke and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Pantellerite belongs to Igneous Rocks.Texture of Greywacke is Clastic whereas that of Pantellerite is Eutaxitic. Greywacke appears Dull and Pantellerite appears Layered and Foliated. The luster of Greywacke is dull while that of Pantellerite is earthy. Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Pantellerite are creating artwork.