Shoshonite

Boninite

Shoshonite and Boninite

Shoshonite

Boninite

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Definition

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass

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

History

Origin

Wyoming,USA

Japan

Discoverer

Iddings

Unknown

Etymology

From the place of origin called Shoshone riverin Wyoming

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

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

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

Fine Grained Rock, Opaque Rock

Texture

Porphyritic

Aphanitic to Porphyritic

Color

Brown- Black, Dark Brown

Bluish - Grey, Brown, Green, Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull

Dull and Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Homes, Kitchens

Exterior Uses

As Building Stone, As Facing Stone

Garden Decoration, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

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

Medical Industry

Antiquity Uses

Sculpture

Artifacts

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

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

Types

Intermediate volcanic rock

Basalt

Features

Has High structural resistance against erosion and climate, Very fine grained rock

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Shoshonite 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.

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

Composition

Mineral Content

Pyroxene

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

Compound Content

Aluminium Oxide, Iron(III) Oxide, Potassium Oxide, Sodium Oxide, Titanium Dioxide

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

1 7

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Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Uneven

Streak

White to Grey

White

Porosity

Less Porous

Luster

Dull

Vitreous

Compressive Strength

175.00 N/mm²150.00 N/mm²

0.15 450

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Cleavage

Toughness

1.6

1.1

Specific Gravity

2.982.5-2.8

0 8.4

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Transparency

Opaque

Density

2.9-3 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Africa

South Africa

Europe

Iceland

England, Finland, United Kingdom

Others

Antarctica, Greenland

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil

Colombia, Uruguay

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

All about Shoshonite and Boninite Properties

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