Tachylite

Ijolite

Tachylite and Ijolite

Tachylite

Ijolite

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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

Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite

1.2 History

1.2.1 Origin

Iceland

Finland, Europe

1.2.2 Discoverer

Unknown

1.3 Etymology

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

From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone

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

Earthy, Granular

2.2 Color

Black, Dark Brown

Brown, Buff, Cream, Green, 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

Banded and Foilated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Interior Decoration, Kitchens

3.1.2 Exterior Uses

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

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

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, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Not Available

4.2 Features

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

Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Is one of the oldest 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

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

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.

Ijolite 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.

5.2 Composition

5.2.1 Mineral Content

Feldspar, Olivine

Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite

5.2.2 Compound Content

Fe, Mg

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

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

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5.55.5-6

1 7

6.1.2 Grain Size

Medium to Fine Coarse Grained

Coarse Grained

6.1.3 Fracture

Conchoidal

Conchoidal to Uneven

6.1.4 Streak

Vermilion

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Resinous

Greasy to Dull

6.1.7 Compressive Strength

206.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Not Available

Poor

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

2.42.6-2.76

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

3.058 g/cm³2.6 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.56 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Cambodia, Russia, South Korea

Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

7.1.2 Africa

East Africa

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

7.1.3 Europe

England, Germany, Hungary, Iceland, Scotland, Sweden

England, Finland, Germany, Great Britain, Greece, United Kingdom

7.1.4 Others

Hawaii Islands

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

USA

Canada, USA

7.2.2 South America

Not Yet Found

Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

Victoria

New Zealand, Queensland, Western Australia

All about Tachylite and Ijolite Properties

Know all about Tachylite and Ijolite properties here. All properties of rocks are important as they define the type of rock and its application. Tachylite and Ijolite belong to Igneous Rocks.Texture of Tachylite is Vitreous whereas that of Ijolite is Earthy, Granular. Tachylite appears Glassy and Ijolite appears Banded and Foilated. The luster of Tachylite is resinous while that of Ijolite is greasy to dull. Tachylite is available in black, dark brown colors whereas Ijolite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Tachylite and Ijolite are cemetery markers, creating artwork.