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What is Dacite?



Definition
0

Definition
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite 0

History
0

Origin
Romania and Moldova, Europe 0

Discoverer
Unknown 0

Etymology
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described 0

Class
Igneous Rocks 0

Sub-Class
Durable Rock, Soft Rock 0

Family
0

Group
Volcanic 0

Other Categories
Fine Grained Rock, Medium Grained Rock, Opaque Rock 0

Texture
0

Texture
Aphanitic to Porphyritic 0

Color
Bluish - Grey, Brown, Grey, Light to Dark Grey 0

Maintenance
Less 0

Durability
Durable 0

Water Resistant
No 0

Scratch Resistant
No 0

Stain Resistant
No 0

Wind Resistant
No 0

Acid Resistant
No 0

Appearance
Vesicular 0

Uses
0

Architecture
0

Interior Uses
Decorative Aggregates, Entryways, Interior Decoration 0

Exterior Uses
As Building Stone, Paving Stone, Garden Decoration 0

Other Architectural Uses
Curbing 0

Industry
0

Construction Industry
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping 0

Medical Industry
Not Yet Used 0

Antiquity Uses
Artifacts 0

Other Uses
0

Commercial Uses
Commemorative Tablets, Creating Artwork 0

Types
0

Types
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite 0

Features
Host Rock for Lead, Is one of the oldest rock 0

Archaeological Significance
0

Monuments
Not Yet Used 0

Famous Monuments
Not Applicable 0

Sculpture
Not Yet Used 0

Famous Sculptures
Not Applicable 0

Pictographs
Used 0

Petroglyphs
Used 0

Figurines
Not Yet Used 0

Fossils
Absent 0

Formation
0

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. 0

Composition
0

Mineral Content
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon 0

Compound Content
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide 0

Transformation
0

Metamorphism
Yes 0

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism 0

Weathering
Yes 0

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering 0

Erosion
Yes 0

Types of Erosion
Chemical Erosion 0

Properties
0

Physical Properties
0

Hardness
2-2.25 0

Grain Size
Medium to Fine Coarse Grained 0

Fracture
Conchoidal 0

Streak
White 0

Porosity
Less Porous 0

Luster
Subvitreous to Dull 0

Compressive Strength
Not Available 0

Cleavage
Perfect 0

Toughness
Not Available 0

Specific Gravity
2.86-2.87 0

Transparency
Translucent 0

Density
2.77-2.771 g/cm3 0

Thermal Properties
0

Specific Heat Capacity
0.92 kJ/Kg K 10

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant 0

Reserves
0

Deposits in Eastern Continents
0

Asia
Not Yet Found 0

Africa
Not Yet Found 0

Europe
France, Greece, Romania, Scotland, Spain 0

Others
Not Yet Found 0

Deposits in Western Continents
0

North America
USA 0

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela 0

Deposits in Oceania Continent
0

Australia
New Zealand, South Australia, Western Australia 0

Summary >>
<< Reserves

Igneous Rocks

Learn more about Properties of Dacite

What is Dacite? In this section, we will learn more about properties of Dacite i.e. physical and thermal properties. Physical properties of Dacite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Dacite is Not Available. Streak of Dacite is white while its cleavage is perfect. Luster of Dacite is subvitreous to dull and its fracture is conchoidal. Dacite is translucent in nature. Know all about Dacite, What is Dacite, its composition, features, facts and reserves in next sections.

Know about Composition of Dacite

What is Dacite composed of? Get to know about composition of Dacite here. Dacite definition gives information about the Formation of Dacite and its composition.The composition of Dacite can be further divided into mineral and compound content. The mineral content of Dacite rock includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon and The compound content of Dacite rock includes Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide. Almost all rocks undergo transformation process. Know all about Dacite rock in next section.

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