Pantellerite

Picrite

Pantellerite and Picrite

Pantellerite

Picrite

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Definition

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

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

History

Origin

Strait of sicily

Hawaii Islands

Discoverer

Unknown

Etymology

From Pantelleria, a volcanic island in the Strait of Sicily

From Greek pikros bitter + -ite, 19th century

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Eutaxitic

Earthy, Rough

Color

Dark Greenish - Grey

Black, Brown, Green, Grey, Pink, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Layered and Foliated

Rough and Shiny

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

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.

Medical Industry

Antiquity Uses

Artifacts, Sculpture

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork

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

Types

Pantelleritic Ignimbrite

Oceanite

Features

High Fe content

Host Rock for Lead

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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.

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.

Composition

Mineral Content

Amphibole, Feldspar, Ilmenite

Biotite, Olivine, Plagioclase, Pyrrhotite

Compound Content

Al, Fe

Al, CaO, Carbon Dioxide, Mg, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

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

Properties

Physical Properties

Hardness

6-76.8

1 7

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Grain Size

Fine Grained

Fracture

Sub-conchoidal

Uneven

Streak

White, Greenish White or Grey

Porosity

Less Porous

Luster

Earthy

Subvitreous to Dull

Compressive Strength

210.00 N/mm²189.00 N/mm²

0.15 450

👆🏻

Cleavage

Conchoidal

Toughness

2.1

Specific Gravity

-99992.75-2.92

0 8.4

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Transparency

Translucent to Opaque

Opaque

Density

-9999 g/cm³1.5-2.5 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.88 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India

India, Russia

Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

South Africa

Europe

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

Iceland

Others

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Bolivia, Brazil, Colombia, Ecuador

Brazil

Deposits in Oceania Continent

Australia

Central Australia, Queensland, Western Australia

All about Pantellerite and Picrite Properties

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