Phonolite

Tachylite

Phonolite vs Tachylite

Phonolite

Tachylite

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Definition

Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic

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

History

Origin

Iceland

Discoverer

Unknown

Etymology

From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit

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

Class

Igneous Rocks

Sub-Class

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

Granular

Vitreous

Color

Brown, Buff, Cream, Green, Grey, Pink, White

Black, Dark Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded and Foilated

Glassy

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Flooring, Homes

Decorative Aggregates, Interior Decoration

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics

Cutting Tool, Knives, Landscaping, Scrapers

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Types

Kenyte

Volcanic glass

Features

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

Absent

Formation

Phonolite are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.

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

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

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

Contact Metamorphism

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

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-65.5

1 7

👆🏻

Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Conchoidal to Uneven

Conchoidal

Streak

White

Vermilion

Porosity

Less Porous

Luster

Greasy to Dull

Resinous

Compressive Strength

150.00 N/mm²206.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.62.4

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.6 g/cm³3.058 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.56 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Cambodia, Russia, South Korea

Africa

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

East Africa

Europe

Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden

England, Germany, Hungary, Iceland, Scotland, Sweden

Others

Greenland

Hawaii Islands

Deposits in Western Continents

North America

Canada, USA

USA

South America

Brazil, Chile, Colombia, Uruguay, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Queensland, South Australia, Tasmania, Western Australia

Victoria

Phonolite vs Tachylite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Phonolite and Tachylite Reserves. Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Phonolite vs Tachylite information and Phonolite vs Tachylite characteristics in the upcoming sections.

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Phonolite vs Tachylite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Phonolite vs Tachylite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Phonolite and Properties of Tachylite. Learn more about Phonolite vs Tachylite in the next section. The interior uses of Phonolite include Countertops, Decorative aggregates, Flooring and Homes whereas the interior uses of Tachylite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Phonolite and Tachylite, they have various applications in construction industry. The uses of Phonolite in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics and that of Tachylite include Cutting tool, Knives, Landscaping, Scrapers.

More about Phonolite and Tachylite

Here you can know more about Phonolite and Tachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Phonolite and Tachylite consists of mineral content and compound content. The mineral content of Phonolite includes Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite and mineral content of Tachylite includes Feldspar, Olivine. You can also check out the list of all Igneous Rocks. When we have to compare Phonolite vs Tachylite, the texture, color and appearance plays an important role in determining the type of rock. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas, Tachylite is available in black, dark brown colors. Appearance of Phonolite is Banded and Foilated and that of Tachylite is Glassy. Properties of rock is another aspect for Phonolite vs Tachylite. The hardness of Phonolite is 5.5-6 and that of Tachylite is 5.5. The types of Phonolite are Kenyte whereas types of Tachylite are Volcanic glass. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Phonolite is white while that of Tachylite is vermilion. The specific heat capacity of Phonolite is 0.84 kJ/Kg K and that of Tachylite is 0.56 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Phonolite is heat resistant, impact resistant, wear resistant whereas Tachylite is heat resistant, impact resistant, wear resistant.