Definition
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
Origin
Italy
European Foreland Basins
Discoverer
Unknown
Arnold H. Bouma
Etymology
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Group
Volcanic
Not Applicable
Other Categories
Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Texture
Porphyritic
Mud-rich, Sandy
Color
Blue, Bluish - Grey
Black, Brown, Colourless, Green, Grey, Pink
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Foliated
Dull and Banded
Interior Uses
Countertops, Decorative Aggregates, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Construction Industry
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Raw material for the manufacture of mortar
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts
Artifacts, Monuments, Sculpture
Commercial Uses
Cemetery Markers
Cemetery Markers, Creating Artwork
Types
Rhyolite
Not Available
Features
Very fine grained rock, It is One of the Oldest, Strongest and Hardest Rock
High silica content, Host Rock for Lead
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Data Not Available
Sculpture
Not Yet Used
Used
Famous Sculptures
Not Applicable
Data Not Available
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Used
Formation
Comendite is a type of Igneous rock which is formed due to cooling and solidification of lava or magma. It may form with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
Turbidite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. These particles then settle down and are subjected to high temperature and pressures hence forming Turbidite.
Mineral Content
Albite, Amphibole, Quartz
Coesite, Quartz, Sand
Compound Content
Al, Fe, Potassium Oxide
CaO, Carbon Dioxide, MgO
Types of Metamorphism
Cataclastic Metamorphism, Regional Metamorphism
Not Applicable
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Types of Erosion
Coastal Erosion, Water Erosion
Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion
Grain Size
Medium Grained
Fine to Coarse Grained
Fracture
Pervasive
Splintery
Streak
Bluish Black
White, Greenish White or Grey
Porosity
Highly Porous
Very Less Porous
Cleavage
Not Available
Disjunctive
Specific Gravity
2.38
2.46-2.73
Transparency
Opaque
Opaque
Density
Not Available
1.6-2.5 g/cm3
Specific Heat Capacity
Not Available
Resistance
Heat Resistant, Impact Resistant
Heat Resistant
Deposits in Eastern Continents
Africa
East Africa
Western Africa
Europe
Italy
Austria, Belarus, Romania, Switzerland, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Not Yet Found
Canada, USA
South America
Not Yet Found
Brazil, Colombia
Deposits in Oceania Continent
Australia
Queensland
New Zealand, Western Australia
All about Comendite and Turbidite Properties
Know all about Comendite and Turbidite properties here. All properties of rocks are important as they define the type of rock and its application. Comendite belongs to Igneous Rocks while Turbidite belongs to Sedimentary Rocks.Texture of Comendite is Porphyritic whereas that of Turbidite is Mud-rich, Sandy. Comendite appears Foliated and Turbidite appears Dull and Banded. The luster of Comendite is dull while that of Turbidite is metallic. Comendite is available in blue, bluish - grey colors whereas Turbidite is available in black, brown, colourless, green, grey, pink colors. The commercial uses of Comendite are cemetery markers and that of Turbidite are cemetery markers, creating artwork.