Pantellerite

Pyroxenite

Pantellerite and Pyroxenite

Pantellerite

Pyroxenite

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Definition

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

Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine

History

Origin

Strait of sicily

Discoverer

Unknown

Etymology

From Pantelleria, a volcanic island in the Strait of Sicily

From pyro- fire + Greek xenos stranger as the mineral group was new to igneous rocks

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Eutaxitic

Clastic, Granular, Phaneritic, Porphyritic

Color

Dark Greenish - Grey

Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Layered and Foliated

Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Interior Decoration, Kitchens

Exterior Uses

As Building Stone, As Facing Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Artifacts, Sculpture

Artifacts

Other Uses

Commercial Uses

Creating Artwork

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

Types

Pantelleritic Ignimbrite

Clinopyroxenites, Orthopyroxenites and Websterites

Features

High Fe content

Generally rough to touch, Host rock for Diamond, Is one of the oldest rock

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.

Pyroxenites are ultramafic igneous rocks which are made up of minerals of the pyroxene group, such as augite and diopside, hypersthene, bronzite or enstatite.

Composition

Mineral Content

Amphibole, Feldspar, Ilmenite

Amphibole, Augite, Bronzite, Chromite, Diopside, Enstatite, Garnet, Hornblende, Hypersthene, Magnetite, Pyroxene

Compound Content

Al, Fe

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Burial Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

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

Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

6-77

1 7

👆🏻

Grain Size

Fine Grained

Coarse Grained

Fracture

Sub-conchoidal

Uneven

Streak

White, Greenish White or Grey

Porosity

Less Porous

Luster

Earthy

Dull to Vitreous to Submetallic

Compressive Strength

210.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Conchoidal

Toughness

Specific Gravity

-99993.2-3.5

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

-9999 g/cm³3.1-3.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Impact Resistant, Pressure Resistant, Wear 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

Germany, Greece, Italy, Scotland, Turkey

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Bolivia, Brazil, Colombia, Ecuador

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

Central Australia, Queensland, Western Australia

New Zealand, Queensland

All about Pantellerite and Pyroxenite Properties

Know all about Pantellerite and Pyroxenite properties here. All properties of rocks are important as they define the type of rock and its application. Pantellerite and Pyroxenite belong to Igneous Rocks.Texture of Pantellerite is Eutaxitic whereas that of Pyroxenite is Clastic, Granular, Phaneritic, Porphyritic. Pantellerite appears Layered and Foliated and Pyroxenite appears Layered, Banded, Veined and Shiny. The luster of Pantellerite is earthy while that of Pyroxenite is dull to vitreous to submetallic. Pantellerite is available in dark greenish - grey colors whereas Pyroxenite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Pantellerite are creating artwork and that of Pyroxenite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.