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Slate
Slate

Gabbro
Gabbro



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Slate and Gabbro

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1 Definition
1.1 Definition
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
1.2 History
1.2.1 Origin
England
Germany
1.2.2 Discoverer
Unknown
Christian Leopold von Buch
1.3 Etymology
From Old French esclate, from esclat (French éclat)
From Latin glaber bare, smooth, bald
1.4 Class
Metamorphic Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Plutonic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Foliated
Phaneritic
2.2 Color
Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue
Dark Grey to Black
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Dull
Veined and Shiny
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
Countertops, Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Blackboards, Commemorative Tablets, Laboratory bench tops, Standard material for the bed of Billiard table, Standard material for the beds of Pool and Snooker table, Tombstones, Used in aquariums, Writing Slates
Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones
4 Types
4.1 Types
Not Available
Not Available
4.2 Features
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock
Smooth to touch
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Data Not Available
Data Not Available
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Used
Not Used
4.3.6 Petroglyphs
Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Slate is a low grade metamorphic rock that is generally formed by metamorphosis of mudstone or shale, under relatively low pressure and temperature conditions.
Gabbro, a mafic rock, forms due to cooling and crystallization of magma underneath Earth's surface.
5.2 Composition
5.2.1 Mineral Content
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon
Augite, Olivine, Plagioclase, Pyroxene
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Impact Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering
5.3.5 Erosion
5.3.6 Types of Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Coastal Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3-47
Coal
1 7
6.1.2 Grain Size
Very fine-grained
Coarse Grained
6.1.3 Fracture
Splintery
Conchoidal
6.1.4 Streak
Light to dark brown
Black
6.1.5 Porosity
Less Porous
Highly Porous
6.1.6 Luster
Dull
Not Available
6.1.7 Compressive Strength
30.00 N/mm2225.00 N/mm2
What Is Obsidian
0.15 450
6.1.8 Cleavage
Slaty
Not Available
6.1.9 Toughness
1.2
1.6
6.1.10 Specific Gravity
2.65-2.82.86-2.87
Granite
0 8.4
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.6-2.8 g/cm32.7-3.3 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.76 kJ/Kg KNA
What Is Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India, Turkey
India, Russia
7.1.2 Africa
Not Yet Found
South Africa
7.1.3 Europe
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom
Germany, Greece, Italy, Scotland, Turkey
7.1.4 Others
Arctic
Greenland
7.2 Deposits in Western Continents
7.2.1 North America
USA
Canada, USA
7.2.2 South America
Brazil
Brazil, Colombia, Venezuela
7.3 Deposits in Oceania Continent
7.3.1 Australia
Not Yet Found
New Zealand, Queensland

All about Slate and Gabbro Properties

Know all about Slate and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Slate belongs to Metamorphic Rocks while Gabbro belongs to Igneous Rocks.Texture of Slate is Foliated whereas that of Gabbro is Phaneritic. Slate appears Dull and Gabbro appears Veined and Shiny. The luster of Slate is dull while that of Gabbro is not available. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.