Essexite

Pantellerite

Essexite and Pantellerite

Essexite

Pantellerite

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1 Definition

1.1 Definition

Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock

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

1.2 History

1.2.1 Origin

USA

Strait of sicily

1.2.2 Discoverer

Unknown

1.3 Etymology

From the locality in Essex County, Massachusetts,US

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

Plutonic

Volcanic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Granular

Eutaxitic

2.2 Color

Dark Grey to Black

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

Banded

Layered and Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes, Interior Decoration

Not Yet Used

3.1.2 Exterior Uses

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

Not Yet Used

3.1.3 Other Architectural Uses

Curbing

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

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

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Commemorative Tablets, Jewelry, Sea Defence, Tombstones

Creating Artwork

4 Types

4.1 Types

Not Available

Pantelleritic Ignimbrite

4.2 Features

Is one of the oldest rock, Smooth to touch

High Fe content

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Essexite is a type of igneous rock, which is usually dark grey to black plutonic rock. For the formation of essexite, suitable magma with exact composition of K, Ba, Rb, Cs, Sr should be produced.

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

Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene

Amphibole, Feldspar, Ilmenite

5.2.2 Compound Content

Aluminium Oxide, Ba, Ca, Cs, Potassium, Rb, Sodium, Sr

Al, Fe

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Coastal Erosion, Glacier Erosion, Water 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

Conchoidal

Sub-conchoidal

6.1.4 Streak

Black

Unknown

6.1.5 Porosity

Highly Porous

Less Porous

6.1.6 Luster

Not Available

Earthy

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Not Available

Conchoidal

6.1.9 Toughness

1.6

6.1.10 Specific Gravity

Not AvailableNot 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

Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Russia

China, India

7.1.2 Africa

South Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

7.1.3 Europe

Germany, Greece, Italy, Scotland, Turkey

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

7.1.4 Others

Greenland

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

7.2.2 South America

Brazil, Colombia, Venezuela

Argentina, Bolivia, Brazil, Colombia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

New Zealand, Queensland

Central Australia, Queensland, Western Australia

All about Essexite and Pantellerite Properties

Know all about Essexite and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Essexite and Pantellerite belong to Igneous Rocks.Texture of Essexite is Granular whereas that of Pantellerite is Eutaxitic. Essexite appears Banded and Pantellerite appears Layered and Foliated. The luster of Essexite is not available while that of Pantellerite is earthy. Essexite is available in dark grey to black colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Pantellerite are creating artwork.