Charnockite

Siltstone

Charnockite and Siltstone

Charnockite

Siltstone

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Definition

Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar

Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt

History

Origin

Tamil Nadu, India

Discoverer

T. H. Holland

Unknown

Etymology

From Job Charnock, an administtrator of East India Company

From English word silt and stone and from Proto-Indo-European root sal and stainaz

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Granular

Clastic

Color

Black, Grey, Orange, Pink, White

Brown, Red, Reddish Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Rough

Uses

Architecture

Interior Uses

Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Decorative Aggregates, Interior Decoration

Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone

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

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

Raw material for the manufacture of mortar, Soil Conditioner

Types

Enderbite

Siltstone

Features

Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Available in Lots of Colors and Patterns, Easily splits into thin plates, Generally rough to touch, High silica content, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.

Siltstone is a type of sedimentary rock which is formed from fine rock particles. As the particles of eroded rock travel along with water, the edges of the rock are worn-out by water into a rounded shape.

Composition

Mineral Content

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz

Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz, Sand, Silica, Silt

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

6-76-7

1 7

👆🏻

Grain Size

Coarse Grained

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Very Less Porous

Highly Porous

Luster

Dull

Compressive Strength

190.00 N/mm²30.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.6

Specific Gravity

-99992.54-2.73

0 8.4

👆🏻

Transparency

Opaque

Density

2.6 g/cm³2.6-2.7 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, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Water Resistant

Reserves

Deposits in Eastern Continents

Asia

India

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

East Africa, Ethiopia, Madagascar, Morocco, Mozambique

Namibia, Nigeria, South Africa

Europe

Albania, Romania, Scotland, United Kingdom

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

USA

Canada, USA

South America

Brazil, Colombia, Venezuela

Brazil

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New South Wales, New Zealand

All about Charnockite and Siltstone Properties

Know all about Charnockite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Charnockite is Granular whereas that of Siltstone is Clastic. Charnockite appears Veined or Pebbled and Siltstone appears Rough. The luster of Charnockite is while that of Siltstone is dull. Charnockite is available in black, grey, orange, pink, white colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Charnockite are curling, gemstone, laboratory bench tops, tombstones and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.