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Slate
Slate

Borolanite
Borolanite



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Slate vs Borolanite

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Definition

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
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix

History

Origin

England
Scotland

Discoverer

Abraham Gottlob Werner
Unknown

Etymology

From Old French esclate, from esclat (French éclat)
From Alkalic Igneous complex near Loch Borralan in northwest Scotland

Class

Metamorphic Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
Plutonic

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Foliated
Granular

Color

Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue
Brown, Buff, Cream, Green, Grey, Pink, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Banded and Foilated

Uses

Architecture

Interior Uses

Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts

Other Uses

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

Types

Types

Phyllite, Schist, and Slate
-

Features

Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

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.
Borolanites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.

Composition

Mineral Content

Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Wind Erosion

Properties

Physical Properties

Hardness

3-45.5-6
1 7
👆🏻

Grain Size

Very fine-grained
Fine Grained

Fracture

Splintery
Conchoidal to Uneven

Streak

Light to dark brown
White

Porosity

Less Porous
Less Porous

Luster

Dull
Greasy to Dull

Compressive Strength

30.00 N/mm2150.00 N/mm2
0.15 450
👆🏻

Cleavage

Slaty
-

Toughness

1.2
-

Specific Gravity

2.65-2.82.6
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

2.6-2.8 g/cm32.6 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.76 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Turkey
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam

Africa

-
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden

Others

Arctic
Greenland

Deposits in Western Continents

North America

USA
Canada, USA

South America

Brazil
Brazil, Chile, Colombia, Uruguay, Venezuela

Deposits in Oceania Continent

Australia

-
New Zealand, Queensland, South Australia, Tasmania, Western Australia

Slate vs Borolanite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Slate and Borolanite Reserves. 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. Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Slate vs Borolanite information and Slate vs Borolanite characteristics in the upcoming sections.

Slate vs Borolanite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Slate vs Borolanite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Slate and Properties of Borolanite. Learn more about Slate vs Borolanite in the next section. The interior uses of Slate include Bathrooms, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads whereas the interior uses of Borolanite include Countertops, Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Slate and Borolanite, they have various applications in construction industry. The uses of Slate in construction industry include As dimension stone and that of Borolanite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics.

More about Slate and Borolanite

Here you can know more about Slate and Borolanite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Slate and Borolanite consists of mineral content and compound content. The mineral content of Slate includes Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon and mineral content of Borolanite includes Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite. You can also check out the list of all Metamorphic Rocks. When we have to compare Slate vs Borolanite, the texture, color and appearance plays an important role in determining the type of rock. Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors whereas, Borolanite is available in brown, buff, cream, green, grey, pink, white colors. Appearance of Slate is Dull and that of Borolanite is Banded and Foilated. Properties of rock is another aspect for Slate vs Borolanite. The hardness of Slate is 3-4 and that of Borolanite is 5.5-6. The types of Slate are Phyllite, Schist, and Slate whereas types of Borolanite are -. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Slate is light to dark brown while that of Borolanite is white. The specific heat capacity of Slate is 0.76 kJ/Kg K and that of Borolanite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Slate is heat resistant, impact resistant, pressure resistant, wear resistant whereas Borolanite is heat resistant, impact resistant, wear resistant.