Serpentinite

Comendite

Serpentinite and Comendite

Serpentinite

Comendite

Add ⊕

Definition

A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.

Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite

History

Origin

USA

Italy

Discoverer

Unknown

Etymology

From English word serpentinization.

Comendite derives its name from the area of Le Commende on San Pietro Island in Italy

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Medium Grained Rock, Opaque Rock

Texture

Earthy

Porphyritic

Color

Black, Brown, Green, Grey, White

Blue, Bluish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Foliated

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement

Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Cemetery Markers

Types

Jadeitite

Rhyolite

Features

Host Rock for Lead

Very fine grained rock, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Serpentinite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Comendite is a type of Igneous rock which is formed due to cooling and solidification of lava or magma. It may form with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Albite, Amphibole, Quartz

Compound Content

Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Al, Fe, Potassium Oxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

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

Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

3-56-7

1 7

👆🏻

Grain Size

Very fine-grained

Medium Grained

Fracture

Uneven

Pervasive

Streak

White, Greenish White or Grey

Bluish Black

Porosity

Less Porous

Highly Porous

Luster

Waxy and Dull

Dull

Compressive Strength

310.00 N/mm²92.40 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.79-32.38

0 8.4

👆🏻

Transparency

Opaque

Density

2.5-3 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.95 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Saudi Arabia, Singapore, South Korea

China

Africa

Ethiopia, Western Africa

East Africa

Europe

England, Georgia, Switzerland, United Kingdom

Italy

Others

Deposits in Western Continents

North America

Canada

South America

Colombia

Deposits in Oceania Continent

Australia

Central Australia, New South Wales, New Zealand, Western Australia

Queensland

All about Serpentinite and Comendite Properties

Know all about Serpentinite and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Serpentinite belongs to Metamorphic Rocks while Comendite belongs to Igneous Rocks.Texture of Serpentinite is Earthy whereas that of Comendite is Porphyritic. Serpentinite appears Rough and Dull and Comendite appears Foliated. The luster of Serpentinite is waxy and dull while that of Comendite is dull. Serpentinite is available in black, brown, green, grey, white colors whereas Comendite is available in blue, bluish - grey colors. The commercial uses of Serpentinite are commemorative tablets, creating artwork and that of Comendite are cemetery markers.