1 Definition
1.2 Definition
An iron rich extrusive rock found as a member of the alkali basalt magma series
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite
1.5 History
1.6.2 Origin
Isle of Mull, Scotland
Romania and Moldova, Europe
2.3.1 Discoverer
2.4 Etymology
From the name of discoverer, Ben More
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described
2.6 Class
Igneous Rocks
Igneous Rocks
2.6.3 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
2.7 Family
2.7.1 Group
2.8 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock
3 Texture
3.2 Texture
Glassy, Massive, Porphyritic, Scoriaceous, Trachytic, Vesicular
Aphanitic to Porphyritic
3.3 Color
Black, Brown, Light to Dark Grey
Bluish - Grey, Brown, Grey, Light to Dark Grey
4.1 Maintenance
5.3 Durability
5.3.5 Water Resistant
5.4.3 Scratch Resistant
5.5.3 Stain Resistant
5.5.6 Wind Resistant
5.7.2 Acid Resistant
5.8 Appearance
8 Uses
8.1 Architecture
8.1.1 Interior Uses
Floor Tiles, Homes, Hotels, Kitchens
Decorative Aggregates, Entryways, Interior Decoration
8.2.2 Exterior Uses
As Building Stone, Paving Stone, Garden Decoration, Office Buildings
As Building Stone, Paving Stone, Garden Decoration
8.2.3 Other Architectural Uses
8.3 Industry
8.3.2 Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping
8.3.3 Medical Industry
Not Yet Used
Not Yet Used
8.4 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
8.5 Other Uses
8.5.1 Commercial Uses
Commemorative Tablets, Creating Artwork, Curling
Commemorative Tablets, Creating Artwork
9 Types
9.1 Types
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB) and Tholeiitic Basalt
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite
9.2 Features
Has High structural resistance against erosion and climate, Very fine grained rock
Host Rock for Lead, Is one of the oldest rock
9.3 Archaeological Significance
9.3.2 Monuments
9.4.1 Famous Monuments
Data Not Available
Not Applicable
9.4.2 Sculpture
10.1.1 Famous Sculptures
Data Not Available
Not Applicable
10.2.2 Pictographs
10.3.1 Petroglyphs
10.3.3 Figurines
10.4 Fossils
11 Formation
11.1 Formation
Benmoreite is a type of Igneous rock which is formed through the cooling and solidification of lava or magma. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
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.
11.2 Composition
11.2.1 Mineral Content
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon
12.1.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide
12.2 Transformation
12.2.1 Metamorphism
12.2.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism
12.2.3 Weathering
12.2.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
12.2.5 Erosion
12.2.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion
13 Properties
13.1 Physical Properties
13.1.1 Hardness
13.1.10 Grain Size
Fine Grained
Medium to Fine Coarse Grained
13.1.12 Fracture
13.1.14 Streak
13.1.17 Porosity
13.1.18 Luster
Earthy
Subvitreous to Dull
13.1.19 Compressive Strength
13.1.25 Cleavage
13.1.26 Toughness
13.1.27 Specific Gravity
13.1.32 Transparency
13.1.33 Density
2.9-3.1 g/cm32.77-2.771 g/cm3
0
1400
1.3 Thermal Properties
1.3.1 Specific Heat Capacity
0.84 kJ/Kg K0.92 kJ/Kg K
0.14
3.2
10.3.4 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
11 Reserves
11.1 Deposits in Eastern Continents
11.1.1 Asia
India, Russia
Not Yet Found
11.1.2 Africa
South Africa
Not Yet Found
11.1.3 Europe
Iceland
France, Greece, Romania, Scotland, Spain
11.1.4 Others
Not Yet Found
Not Yet Found
11.2 Deposits in Western Continents
11.2.2 North America
11.2.3 South America
Brazil
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
11.3 Deposits in Oceania Continent
11.3.1 Australia
Not Yet Found
New Zealand, South Australia, Western Australia