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Lamprophyre
Lamprophyre

Dacite
Dacite



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Lamprophyre
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Dacite

Lamprophyre vs Dacite

Definition

Definition

Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite

History

Origin

-
Romania and Moldova, Europe

Discoverer

Unknown
Unknown

Etymology

From Greek lampros bright and shining + porphureos purple
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock

Family

Group

Plutonic
Volcanic

Other Categories

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

Texture

Texture

Porphyritic
Aphanitic to Porphyritic

Color

Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey
Bluish - Grey, Brown, Grey, Light to Dark Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull, Banded and Foilated
Vesicular

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

Taken as a Supplement for Calcium or Magnesium
-

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts

Other Uses

Commercial Uses

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

Types

Types

Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite

Features

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

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Lamprophyre formation takes place deep beneath the Earth’s surface at around 150 to 450 kilometres, and are erupted rapidly and violently.
Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Further, the Oceanic crust is hydrothermally altered as quartz and sodium are added.

Composition

Mineral Content

Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

Cataclastic Metamorphism, Impact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism

Weathering

Types of Weathering

Biological Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion
Chemical Erosion

Properties

Physical Properties

Hardness

5-62-2.25
1 7
👆🏻

Grain Size

Fine to Coarse Grained
Medium to Fine Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

White
White

Porosity

Very Less Porous
Less Porous

Luster

Subvitreous to Dull
Subvitreous to Dull

Compressive Strength

120.00 N/mm270.00 N/mm2
0.15 450
👆🏻

Cleavage

Conchoidal
Perfect

Toughness

-
-

Specific Gravity

2.86-2.872.86-2.87
0 8.4
👆🏻

Transparency

Translucent to Opaque
Translucent

Density

2.95-2.96 g/cm32.77-2.771 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.92 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

Russia
-

Africa

Angola, Botswana, Cameroon, Ethiopia, South Africa
-

Europe

England, Hungary, Iceland, United Kingdom
France, Greece, Romania, Scotland, Spain

Others

Antarctica, Greenland
-

Deposits in Western Continents

North America

Canada, Mexico, USA
USA

South America

Argentina, Colombia, Ecuador
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

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

Lamprophyre vs Dacite 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 Lamprophyre and Dacite Reserves. Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions. Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. 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 Lamprophyre vs Dacite information and Lamprophyre vs Dacite characteristics in the upcoming sections.

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

More about Lamprophyre and Dacite

Here you can know more about Lamprophyre and Dacite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Lamprophyre and Dacite consists of mineral content and compound content. The mineral content of Lamprophyre includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene and mineral content of Dacite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Lamprophyre vs Dacite, the texture, color and appearance plays an important role in determining the type of rock. Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas, Dacite is available in bluish - grey, brown, grey, light to dark grey colors. Appearance of Lamprophyre is Dull, Banded and Foilated and that of Dacite is Vesicular. Properties of rock is another aspect for Lamprophyre vs Dacite. The hardness of Lamprophyre is 5-6 and that of Dacite is 2-2.25. The types of Lamprophyre are Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite whereas types of Dacite are Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Lamprophyre and Dacite is white. The specific heat capacity of Lamprophyre is 0.84 kJ/Kg K and that of Dacite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Lamprophyre is heat resistant, impact resistant whereas Dacite is heat resistant, impact resistant, pressure resistant, wear resistant.