Boninite

Pantellerite

Boninite and Pantellerite

Boninite

Pantellerite

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1 Definition

1.1 Definition

Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction

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

1.2 History

1.2.1 Origin

Japan

Strait of sicily

1.2.2 Discoverer

Unknown

1.3 Etymology

From its occurrence in the Izu-Bonin arc south of Japan

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

Aphanitic to Porphyritic

Eutaxitic

2.2 Color

Bluish - Grey, Brown, Colourless, Green, Grey

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 and Soft

Layered and Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Kitchens

Not Yet Used

3.1.2 Exterior Uses

Garden Decoration, Office Buildings

Not Yet Used

3.1.3 Other Architectural Uses

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)

Creating Artwork

4 Types

4.1 Types

Not Available

Pantelleritic Ignimbrite

4.2 Features

Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest rock

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

Not Yet Used

4.3.4 Famous Sculptures

Not Applicable

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing 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

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite

Amphibole, Feldspar, Ilmenite

5.2.2 Compound Content

Silicon Dioxide

Al, Fe

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact 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, Wind Erosion

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

6 Properties

6.1 Physical Properties

6.1.1 Hardness

76-7

1 7

6.1.2 Grain Size

Fine Grained

6.1.3 Fracture

Uneven

Sub-conchoidal

6.1.4 Streak

White

Unknown

6.1.5 Porosity

Less Porous

6.1.6 Luster

Vitreous

Earthy

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Not Available

Conchoidal

6.1.9 Toughness

1.1

6.1.10 Specific Gravity

2.5-2.8Not Available

0 8.4

6.1.11 Transparency

Opaque

Translucent to Opaque

6.1.12 Density

Not AvailableNot Available

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

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Not Available

China, India

7.1.2 Africa

South Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

7.1.3 Europe

England, Finland, United Kingdom

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

7.1.4 Others

Antarctica, Greenland

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

USA

Canada, USA

7.2.2 South America

Colombia, Uruguay

Argentina, Bolivia, Brazil, Colombia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand, Western Australia

Central Australia, Queensland, Western Australia

All about Boninite and Pantellerite Properties

Know all about Boninite and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Boninite and Pantellerite belong to Igneous Rocks.Texture of Boninite is Aphanitic to Porphyritic whereas that of Pantellerite is Eutaxitic. Boninite appears Dull and Soft and Pantellerite appears Layered and Foliated. The luster of Boninite is vitreous while that of Pantellerite is earthy. Boninite is available in bluish - grey, brown, colourless, green, grey colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Boninite and Pantellerite are an oil and gas reservoir, cemetery markers, creating artwork, soil conditioner, source of magnesia (mgo).