Pantellerite

Pegmatite

Pantellerite and Pegmatite

Pantellerite

Pegmatite

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Definition

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

Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals

History

Origin

Strait of sicily

Discoverer

Unknown

R. J. Hauy

Etymology

From Pantelleria, a volcanic island in the Strait of Sicily

From Greek pegma, pegmat which means- thing joined together + -ite

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

Pegmatitic

Color

Dark Greenish - Grey

Black, Brown, Cream, Green, Grey, Pink, Red, Rust, Silver, White, Yellow

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

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Medical Industry

Antiquity Uses

Artifacts, Sculpture

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork

Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz

Types

Pantelleritic Ignimbrite

Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite

Features

High Fe content

Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz

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.

Pegmatite rock is holocrystalline, intrusive igneous rock which is formed by partial melting and dewatering during the process of metamorphism.

Composition

Mineral Content

Amphibole, Feldspar, Ilmenite

Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz

Compound Content

Al, Fe

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, Phosphorus Pentoxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal 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

Properties

Physical Properties

Hardness

6-77

1 7

👆🏻

Grain Size

Fine Grained

Medium to Coarse Grained

Fracture

Sub-conchoidal

Conchoidal

Streak

White

Porosity

Less Porous

Luster

Earthy

Grainy, Pearly and Vitreous

Compressive Strength

210.00 N/mm²178.54 N/mm²

0.15 450

👆🏻

Cleavage

Conchoidal

Perfect

Toughness

2.1

Specific Gravity

-99992.6-2.63

0 8.4

👆🏻

Transparency

Translucent to Opaque

Density

-9999 g/cm³2.6-2.65 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India

China, India, Iran, Japan, Nepal, North Korea, Russia, Saudi Arabia, South Korea

Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

South Africa

Europe

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

Austria, France, Greece, Ireland, Italy, Netherlands, Slovakia, Spain, Turkey, Ukraine

Others

Deposits in Western Continents

North America

Canada, USA

Canada

South America

Argentina, Bolivia, Brazil, Colombia, Ecuador

Brazil

Deposits in Oceania Continent

Australia

Central Australia, Queensland, Western Australia

New South Wales, Queensland, South Australia, Western Australia

All about Pantellerite and Pegmatite Properties

Know all about Pantellerite and Pegmatite properties here. All properties of rocks are important as they define the type of rock and its application. Pantellerite and Pegmatite belong to Igneous Rocks.Texture of Pantellerite is Eutaxitic whereas that of Pegmatite is Pegmatitic. Pantellerite appears Layered and Foliated and Pegmatite appears Layered, Banded, Veined and Shiny. The luster of Pantellerite is earthy while that of Pegmatite is grainy, pearly and vitreous. Pantellerite is available in dark greenish - grey colors whereas Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors. The commercial uses of Pantellerite are creating artwork and that of Pegmatite are creating artwork, jewelry, source of corundum, tourmalines, beryls and topaz.