Picrite

Pantellerite

Picrite and Pantellerite

Picrite

Pantellerite

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1 Definition

1.1 Definition

Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

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

1.2 History

1.2.1 Origin

Hawaii Islands

Strait of sicily

1.2.2 Discoverer

Unknown

1.3 Etymology

From Greek pikros bitter + -ite, 19th century

From Pantelleria, a volcanic island in the Strait of Sicily

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy, Rough

Eutaxitic

2.2 Color

Black, Brown, Colourless, Green, Grey, Pink, 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

Rough and Shiny

Layered and Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Not Yet Used

3.1.2 Exterior Uses

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

Not Yet Used

3.1.3 Other Architectural Uses

Curbing

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

Creating Artwork

4 Types

4.1 Types

Oceanite

Pantelleritic Ignimbrite

4.2 Features

Host Rock for Lead

High Fe content

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

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

Absent

5 Formation

5.1 Formation

Picrite 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.

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.

5.2 Composition

5.2.1 Mineral Content

Biotite, Olivine, Plagioclase, Pyrrhotite

Amphibole, Feldspar, Ilmenite

5.2.2 Compound Content

Al, CaO, Carbon Dioxide, Mg, MgO

Al, Fe

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

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

6 Properties

6.1 Physical Properties

6.1.1 Hardness

6.86-7

1 7

6.1.2 Grain Size

Fine Grained

6.1.3 Fracture

Uneven

Sub-conchoidal

6.1.4 Streak

White, Greenish White or Grey

Unknown

6.1.5 Porosity

Less Porous

6.1.6 Luster

Subvitreous to Dull

Earthy

6.1.7 Compressive Strength

189.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Imperfect

Conchoidal

6.1.9 Toughness

2.1

6.1.10 Specific Gravity

2.75-2.92Not Available

0 8.4

6.1.11 Transparency

Opaque

Translucent to Opaque

6.1.12 Density

1.5-2.5 g/cm³Not Available

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.88 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Russia

China, India

7.1.2 Africa

South Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

7.1.3 Europe

Iceland

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

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Brazil

Argentina, Bolivia, Brazil, Colombia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

Not Yet Found

Central Australia, Queensland, Western Australia

All about Picrite and Pantellerite Properties

Know all about Picrite and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Picrite and Pantellerite belong to Igneous Rocks.Texture of Picrite is Earthy, Rough whereas that of Pantellerite is Eutaxitic. Picrite appears Rough and Shiny and Pantellerite appears Layered and Foliated. The luster of Picrite is subvitreous to dull while that of Pantellerite is earthy. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo) and that of Pantellerite are creating artwork.