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Laterite
Laterite

Tachylite
Tachylite



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Tachylite

Laterite and Tachylite

Definition

Definition

Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt

History

Origin

India
Iceland

Discoverer

Francis Buchanan-Hamilton
Unknown

Etymology

From Latin later brick, tile + -ite1
From German Tachylite, from tachy- + Greek lutos soluble, melting

Class

Sedimentary Rocks
Igneous Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
Volcanic

Other Categories

Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture

Earthy, Massive, Porphyritic
Vitreous

Color

Brown, Buff, Red
Black, Dark Brown

Maintenance

Less
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Banded
Glassy

Uses

Architecture

Interior Uses

Decorative Aggregates, Flooring, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Cobblestones, for Road Aggregate, Landscaping, Roadstone
Cutting Tool, Knives, Landscaping, Scrapers

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts

Other Uses

Commercial Uses

An Oil and Gas Reservoir, Source of bauxite, Used in aquariums
Cemetery Markers, Creating Artwork

Types

Types

Laterite
Volcanic glass

Features

Is one of the oldest rock, Very fine grained rock
Available in Lots of Colors and Patterns, Clasts are smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Laterite is a type of sedimentary rock which is generally a reddish weathering product of basalt.
Tachylite 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.

Composition

Mineral Content

Aluminum Oxides, Biotite, Hematite, Hornblade, Iron Oxides, Manganese Oxides, Micas, Muscovite or Illite, Plagioclase, Pyroxene
Feldspar, Olivine

Compound Content

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

Transformation

Metamorphism

Types of 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, Water Erosion, Wind Erosion
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

25.5
1 7
👆🏻

Grain Size

Fine Grained
Medium to Fine Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

White
Vermilion

Porosity

Highly Porous
Less Porous

Luster

Dull
Resinous

Compressive Strength

5.00 N/mm2206.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

-
-

Specific Gravity

-99992.4
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

-9999 g/cm33.058 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.56 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India
Cambodia, Russia, South Korea

Africa

East Africa, Western Africa
East Africa

Europe

England, Romania, Scotland
England, Germany, Hungary, Iceland, Scotland, Sweden

Others

-
Hawaii Islands

Deposits in Western Continents

North America

Canada, USA
USA

South America

-
-

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
Victoria

All about Laterite and Tachylite Properties

Know all about Laterite and Tachylite properties here. All properties of rocks are important as they define the type of rock and its application. Laterite belongs to Sedimentary Rocks while Tachylite belongs to Igneous Rocks.Texture of Laterite is Earthy, Massive, Porphyritic whereas that of Tachylite is Vitreous. Laterite appears Rough and Banded and Tachylite appears Glassy. The luster of Laterite is dull while that of Tachylite is resinous. Laterite is available in brown, buff, red colors whereas Tachylite is available in black, dark brown colors. The commercial uses of Laterite are an oil and gas reservoir, source of bauxite, used in aquariums and that of Tachylite are cemetery markers, creating artwork.