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Dacite
Dacite

Diabase
Diabase



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Dacite
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Diabase

Dacite vs Diabase

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Definition

Definition

Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar

History

Origin

Romania and Moldova, Europe
Germany

Discoverer

Unknown
Christian Leopold von Buch

Etymology

From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
From Greek di + base

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
Volcanic

Other Categories

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

Texture

Texture

Aphanitic to Porphyritic
Aphanitic, Granular

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Vesicular
Vesicular

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Countertops, Decorative Aggregates, Homes, Interior Decoration, Kitchens

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

-
-

Antiquity Uses

Artifacts
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork
An Oil and Gas Reservoir, Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

Types

Types

Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
Dolerite

Features

Host Rock for Lead, Is one of the oldest rock
Smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
Stonehenge in English county of Wiltshire

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

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.
Diabase forms when molten igneous rock is squeezed up into a vertical crack in other rocks, the crack is usually forced apart and the molten rock cools in the space to form a tabular igneous intrusion cutting across the surrounding rocks and is known as a dike.

Composition

Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
Augite, Chlorite, Olivine, Plagioclase, Pyroxene, Pyrrhotite, Serpentine

Compound Content

Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering

Erosion

Types of Erosion

Chemical Erosion
Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

2-2.257
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Fine to Medium Grained

Fracture

Conchoidal
Conchoidal

Streak

White
Black

Porosity

Less Porous
Highly Porous

Luster

Subvitreous to Dull
-

Compressive Strength

70.00 N/mm2225.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

-
1.6

Specific Gravity

2.86-2.872.86-2.87
0 8.4
👆🏻

Transparency

Translucent
Opaque

Density

2.77-2.771 g/cm32.7-3.3 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, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

-
India

Africa

-
South Africa, Tanzania

Europe

France, Greece, Romania, Scotland, Spain
Germany, Greece, Italy, Scotland, Turkey

Others

-
Antarctica, Greenland

Deposits in Western Continents

North America

USA
Canada, USA

South America

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

Deposits in Oceania Continent

Australia

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

Dacite vs Diabase 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 Dacite and Diabase Reserves. Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar. 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 Dacite vs Diabase information and Dacite vs Diabase characteristics in the upcoming sections.

Dacite vs Diabase 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. Dacite vs Diabase characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dacite and Properties of Diabase. Learn more about Dacite vs Diabase in the next section. The interior uses of Dacite include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Diabase include Countertops, Decorative aggregates, Homes, Interior decoration and Kitchens. Due to some exceptional properties of Dacite and Diabase, they have various applications in construction industry. The uses of Dacite in construction industry include As dimension stone, Construction aggregate, For road aggregate, Landscaping and that of Diabase include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Dacite and Diabase

Here you can know more about Dacite and Diabase. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dacite and Diabase consists of mineral content and compound content. The mineral content of Dacite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon and mineral content of Diabase includes Augite, Chlorite, Olivine, Plagioclase, Pyroxene, Pyrrhotite, Serpentine. You can also check out the list of all Igneous Rocks. When we have to compare Dacite vs Diabase, the texture, color and appearance plays an important role in determining the type of rock. Dacite is available in bluish - grey, brown, grey, light to dark grey colors whereas, Diabase is available in dark grey to black colors. Appearance of Dacite is Vesicular and that of Diabase is Vesicular. Properties of rock is another aspect for Dacite vs Diabase. The hardness of Dacite is 2-2.25 and that of Diabase is 7. The types of Dacite are Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite whereas types of Diabase are Dolerite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dacite is white while that of Diabase is black. The specific heat capacity of Dacite is 0.92 kJ/Kg K and that of Diabase 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.Dacite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Diabase is heat resistant, impact resistant, pressure resistant, wear resistant.