1 Definition
1.1 Definition
Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
1.2 History
1.2.1 Origin
1.2.2 Discoverer
1.3 Etymology
From Tonale Pass, northern Italy, + -ite1
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
1.4 Class
Igneous Rocks
Igneous Rocks
1.0.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.2 Family
1.2.1 Group
1.4 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
2.2 Color
Black, Brown, Light to Dark Grey, White
Blue, Bluish - Grey
2.3 Maintenance
2.5 Durability
2.6.2 Water Resistant
2.6.4 Scratch Resistant
2.6.5 Stain Resistant
2.7.2 Wind Resistant
2.7.3 Acid Resistant
2.9 Appearance
Banded and Foilated
Foliated
2 Uses
2.1 Architecture
2.1.1 Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration
2.2.1 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration
2.4.1 Other Architectural Uses
2.5 Industry
2.5.1 Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Raw material for the manufacture of mortar
2.6.2 Medical Industry
Not Yet Used
Not Yet Used
2.7 Antiquity Uses
Artifacts, Sculpture
Artifacts
2.9 Other Uses
2.9.1 Commercial Uses
Cemetery Markers, Creating Artwork
Cemetery Markers
3 Types
3.1 Types
3.2 Features
Is one of the oldest rock, Typically speckled black and white.
Very fine grained rock, It is One of the Oldest, Strongest and Hardest Rock
3.3 Archaeological Significance
3.3.1 Monuments
Not Yet Used
Not Yet Used
3.4.1 Famous Monuments
Not Applicable
Not Applicable
3.4.3 Sculpture
3.5.1 Famous Sculptures
Data Not Available
Not Applicable
3.5.3 Pictographs
4.1.1 Petroglyphs
4.3.1 Figurines
5.2 Fossils
6 Formation
6.1 Formation
When alkali feldspar is extracted from granite, it changes to granitoid and later, it becomes tonalite with quartz as major mineral.
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.
6.3 Composition
6.3.1 Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Manganese Oxides, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon
Albite, Amphibole, Quartz
6.3.4 Compound Content
NaCl, CaO, MgO, Silicon Dioxide
Al, Fe, Potassium Oxide
6.4 Transformation
6.5.1 Metamorphism
6.5.4 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Cataclastic Metamorphism, Regional Metamorphism
6.5.6 Weathering
6.6.1 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
6.6.2 Erosion
6.7.4 Types of Erosion
Wind Erosion
Coastal Erosion, Water Erosion
8 Properties
8.1 Physical Properties
8.1.1 Hardness
14.1.2 Grain Size
Medium to Fine Coarse Grained
Medium Grained
14.1.3 Fracture
14.1.4 Streak
Bluish Black
Bluish Black
14.1.5 Porosity
Very Less Porous
Highly Porous
14.2.2 Luster
14.2.3 Compressive Strength
14.3.12 Cleavage
Not Available
Not Available
14.3.13 Toughness
14.3.14 Specific Gravity
15.3.2 Transparency
15.3.3 Density
2.73 g/cm3Not Available
0
1400
16.4 Thermal Properties
16.4.1 Specific Heat Capacity
16.5.2 Resistance
Heat Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Impact Resistant
17 Reserves
17.1 Deposits in Eastern Continents
17.1.1 Asia
17.1.2 Africa
17.1.3 Europe
Finland, Germany, Italy, Romania, Sweden, Turkey
Italy
17.1.4 Others
Not Yet Found
Not Yet Found
17.2 Deposits in Western Continents
17.2.1 North America
17.2.2 South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru
Not Yet Found
17.3 Deposits in Oceania Continent
17.3.1 Australia
New Zealand, South Australia, Western Australia
Queensland