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Pseudotachylite
Pseudotachylite

Lamprophyre
Lamprophyre



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Pseudotachylite
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Lamprophyre

Pseudotachylite vs Lamprophyre

Definition

Definition

Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.
Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions

History

Origin

USA
-

Discoverer

Unknown
Unknown

Etymology

From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.
From Greek lampros bright and shining + porphureos purple

Class

Metamorphic Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
Plutonic

Other Categories

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

Texture

Texture

Quench
Porphyritic

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull and Soft
Dull, Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

-
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments
Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Gemstone
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

Types

Types

Cataclastic rock
Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite

Features

Host Rock for Lead
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Lamprophyre formation takes place deep beneath the Earth’s surface at around 150 to 450 kilometres, and are erupted rapidly and violently.

Composition

Mineral Content

Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides
Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene

Compound Content

Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Cataclastic Metamorphism, Impact Metamorphism

Weathering

Types of Weathering

-
Biological Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

75-6
1 7
👆🏻

Grain Size

Very fine-grained
Fine to Coarse Grained

Fracture

Uneven
Conchoidal

Streak

Light to dark brown
White

Porosity

Less Porous
Very Less Porous

Luster

Vitreous
Subvitreous to Dull

Compressive Strength

60.00 N/mm2120.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Conchoidal

Toughness

-
-

Specific Gravity

2.46-2.862.86-2.87
0 8.4
👆🏻

Transparency

Transparent to Translucent
Translucent to Opaque

Density

2.7-2.9 g/cm32.95-2.96 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant
Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

South Korea
Russia

Africa

Western Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa

Europe

Great Britain, Switzerland
England, Hungary, Iceland, United Kingdom

Others

-
Antarctica, Greenland

Deposits in Western Continents

North America

-
Canada, Mexico, USA

South America

-
Argentina, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia

Pseudotachylite vs Lamprophyre 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 Pseudotachylite and Lamprophyre Reserves. Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions. 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 Pseudotachylite vs Lamprophyre information and Pseudotachylite vs Lamprophyre characteristics in the upcoming sections.

Pseudotachylite vs Lamprophyre 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. Pseudotachylite vs Lamprophyre characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Pseudotachylite and Properties of Lamprophyre. Learn more about Pseudotachylite vs Lamprophyre in the next section. The interior uses of Pseudotachylite include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Lamprophyre include Decorative aggregates and Interior decoration. Due to some exceptional properties of Pseudotachylite and Lamprophyre, they have various applications in construction industry. The uses of Pseudotachylite in construction industry include As dimension stone, Cement manufacture, For road aggregate, Making natural cement and that of Lamprophyre include As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Pseudotachylite and Lamprophyre

Here you can know more about Pseudotachylite and Lamprophyre. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Pseudotachylite and Lamprophyre consists of mineral content and compound content. The mineral content of Pseudotachylite includes Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides and mineral content of Lamprophyre includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Pseudotachylite vs Lamprophyre, the texture, color and appearance plays an important role in determining the type of rock. Pseudotachylite is available in black, brown, green, grey, pink, white colors whereas, Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. Appearance of Pseudotachylite is Dull and Soft and that of Lamprophyre is Dull, Banded and Foilated. Properties of rock is another aspect for Pseudotachylite vs Lamprophyre. The hardness of Pseudotachylite is 7 and that of Lamprophyre is 5-6. The types of Pseudotachylite are Cataclastic rock whereas types of Lamprophyre are Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Pseudotachylite is light to dark brown while that of Lamprophyre is white. The specific heat capacity of Pseudotachylite is 0.92 kJ/Kg K and that of Lamprophyre is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Pseudotachylite is heat resistant whereas Lamprophyre is heat resistant, impact resistant.