Trachyandesite

Charnockite

Trachyandesite and Charnockite

Trachyandesite

Charnockite

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1 Definition

1.1 Definition

Trachyandesite is an extrusive igneous rock.

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

1.2 History

1.2.1 Origin

Indonesia

Tamil Nadu, India

1.2.2 Discoverer

Unknown

T. H. Holland

1.3 Etymology

From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite

From Job Charnock, an administtrator of East India Company

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Volcanic

Plutonic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Glassy, Massive, Porphyritic, Scoriaceous, Vesicular

Granular

2.2 Color

Black, Brown, Light to Dark Grey

Black, Grey, Orange, Pink, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

81% Igneous Rocks Rocks have it !

✔ ✘

81% Igneous Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

86% Igneous Rocks Rocks have it !

✔ ✘

86% Igneous Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

66% Igneous Rocks Rocks have it !

✔ ✘

66% Igneous Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

49% Igneous Rocks Rocks have it !

✔ ✘

49% Igneous Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

48% Igneous Rocks Rocks have it !

✔ ✘

48% Igneous Rocks Rocks have it !

2.5 Appearance

Dull and Soft

Veined or Pebbled

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

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

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration

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

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Building houses or walls, Cobblestones, for Road Aggregate, Rail Track Ballast, Roadstone

As Dimension Stone

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Pottery

Curling, Gemstone, Laboratory bench tops, Tombstones

4 Types

4.1 Types

Basaltic Trachyandesite

Enderbite

4.2 Features

Has High structural resistance against erosion and climate, Very fine grained rock

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

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

Not Used

1.0.1 Petroglyphs

Used

Not Used

1.1.1 Figurines

Used

1.2 Fossils

Absent

2 Formation

2.1 Formation

Trachyandesite 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.

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

2.3 Composition

2.3.1 Mineral Content

Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase

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

2.3.3 Compound Content

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

2.4 Transformation

2.4.2 Metamorphism

✔ ✘

97% Igneous Rocks Rocks have it !

✔ ✘

97% Igneous Rocks Rocks have it !

2.4.5 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

2.4.7 Weathering

✔ ✘

99% Igneous Rocks Rocks have it !

✔ ✘

99% Igneous Rocks Rocks have it !

2.5.1 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

2.5.2 Erosion

✔ ✘

92% Igneous Rocks Rocks have it !

✔ ✘

92% Igneous Rocks Rocks have it !

2.5.3 Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Water Erosion, Wind Erosion

3 Properties

3.1 Physical Properties

3.1.1 Hardness

4-5

6-7

3.1.2 Grain Size

Fine Grained

Coarse Grained

3.1.3 Fracture

Conchoidal

Not Available

3.1.4 Streak

Light to dark brown

White

3.1.5 Porosity

Less Porous

Very Less Porous

3.1.6 Luster

Earthy

Not Available

3.1.7 Compressive Strength

What Is Flint

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▶

▼

37.40 N/mm²

Rank: 28 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Obsidian

⊕

▶

175 (What Is Grani..)

◀ ▶ ADD ⊕

3.1.8 Cleavage

Perfect

Not Available

3.1.9 Toughness

2.3

Not Available

3.1.10 Specific Gravity

2.8-3

Not Available

3.1.11 Transparency

Opaque

3.1.12 Density

2.9-3.1 g/cm³

2.6 g/cm³

3.2 Thermal Properties

3.2.1 Specific Heat Capacity

What Is Banded ..

⊕

▶

▼

0.84 kJ/Kg K

Rank: 15 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Granulite

⊕

▶

1.09 (What Is Trave..)

◀ ▶ ADD ⊕

3.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

4 Reserves

4.1 Deposits in Eastern Continents

4.1.1 Asia

India, Russia

India

4.1.2 Africa

South Africa

East Africa, Ethiopia, Madagascar, Morocco, Mozambique

4.1.3 Europe

Iceland

Albania, Romania, Scotland, United Kingdom

4.1.4 Others

Not Yet Found

4.2 Deposits in Western Continents

4.2.1 North America

Canada, USA

USA

4.2.2 South America

Brazil

Brazil, Colombia, Venezuela

4.3 Deposits in Oceania Continent

4.3.1 Australia

Not Yet Found

Central Australia, Western Australia

All about Trachyandesite and Charnockite Properties

Know all about Trachyandesite and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Trachyandesite and Charnockite belong to Igneous Rocks.Texture of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Charnockite is Granular. Trachyandesite appears Dull and Soft and Charnockite appears Veined or Pebbled. The luster of Trachyandesite is earthy while that of Charnockite is not available. Trachyandesite is available in black, brown, light to dark grey colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Trachyandesite are creating artwork, pottery and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.