Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
Romania and Moldova, Europe
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
Fine Grained Rock, Medium Grained Rock, Opaque Rock
Bluish - Grey, Brown, Grey, Light to Dark Grey
Decorative Aggregates, Entryways, Interior Decoration
As Building Stone, Paving Stone, Garden Decoration
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
Commemorative Tablets, Creating Artwork
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
Host Rock for Lead, Is one of the oldest rock
Archaeological Significance
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.
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide
Burial Metamorphism, Cataclastic Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Medium to Fine Coarse Grained
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
France, Greece, Romania, Scotland, Spain
Deposits in Western Continents
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Deposits in Oceania Continent
New Zealand, South Australia, Western Australia
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 70.00 N/mm2. 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.