Tachylite

Anorthosite

Tachylite and Anorthosite

Tachylite

Anorthosite

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1 Definition

1.1 Definition

Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt

Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase

1.2 History

1.2.1 Origin

Iceland

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From German Tachylite, from tachy- + Greek lutos soluble, melting

From French anorthose plagioclase + -ite1

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Volcanic

Plutonic

1.6 Other Categories

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

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Vitreous

Foliated, Glassy

2.2 Color

Black, Dark Brown

Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White

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

Glassy

Layered, Banded, Veined and Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

3.1.2 Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Cutting Tool, Knives, Landscaping, Scrapers

As Dimension Stone, Cement Manufacture, for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

Artifacts, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Creating Artwork

Creating Artwork, Curling

4 Types

4.1 Types

Not Available

Proterozoic Anorthosite and Archean Anorthosite

4.2 Features

Available in Lots of Colors and Patterns, Clasts are smooth to touch, NA

Generally rough to touch, Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

4.3.5 Pictographs

Used

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

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.

Anorthosite is a phaneritic, intrusive igneous rock which is characterized by a predominance of plagioclase feldspar which is almost 90–100%, and a minimal mafic component.

5.2 Composition

5.2.1 Mineral Content

Feldspar, Olivine

Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene

5.2.2 Compound Content

Fe, Mg

Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

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

Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5.55-6

1 7

6.1.2 Grain Size

Medium to Fine Coarse Grained

Coarse Grained

6.1.3 Fracture

Conchoidal

Irregular

6.1.4 Streak

Vermilion

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Resinous

Pearly to Subvitreous

6.1.7 Compressive Strength

206.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Not Available

Irregular

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

2.42.62-2.82

0 8.4

6.1.11 Transparency

Opaque

Translucent

6.1.12 Density

3.058 g/cm³2.7-4 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.56 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Wear Resistant

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

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Cambodia, Russia, South Korea

Not Yet Found

7.1.2 Africa

East Africa

Not Yet Found

7.1.3 Europe

England, Germany, Hungary, Iceland, Scotland, Sweden

Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic

7.1.4 Others

Hawaii Islands

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

USA

Canada

7.2.2 South America

Not Yet Found

Bolivia, Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

Victoria

Central Australia, South Australia, Western Australia

All about Tachylite and Anorthosite Properties

Know all about Tachylite and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Anorthosite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Anorthosite is Foliated, Glassy. Tachylite appears Glassy and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Tachylite is resinous while that of Anorthosite is pearly to subvitreous. Tachylite is available in black, dark brown colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Tachylite are cemetery markers, creating artwork and that of Anorthosite are creating artwork, curling.