Metapelite

Quartzite

Metapelite and Quartzite

Metapelite

Quartzite

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Definition

Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone

Quartzite is a non-foliated metamorphic rock that forms by the metamorphism of pure quartz Sandstone

History

Origin

Discoverer

Unknown

Etymology

From Pelos or clay in Greek

From quartz + -ite

Class

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Medium Grained Rock, Opaque Rock

Texture

Foliated

Foliated, Granular

Color

Dark Greenish - Grey, Green, Light Green, Light Greenish Grey

Black, Blue, Brown, Green, Light Grey, Purple, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded

Lustrous

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Flooring, Homes

Exterior Uses

As Building Stone, As Facing Stone

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

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate

Arrowheads, As Dimension Stone, Cement Manufacture, Construction Aggregate, Cutting Tool, for Road Aggregate, Making natural cement, Production of Glass and Ceramics, Rail Track Ballast, Roadstone

Medical Industry

Antiquity Uses

Artifacts

Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

An Oil and Gas Reservoir, As armour rock for sea walls, Cemetery Markers, Commemorative Tablets, In aquifers, Laboratory bench tops, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones, Used in aquariums

Types

Metamorphic rock

Orthoquartzite and Metaquartzite

Features

Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock

Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Metapelite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Quartzite forms from sandstone and the mineral quartz being put under extreme heat and pressure.

Composition

Mineral Content

Albite, Chlorite, Quartz

Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz

Compound Content

Aluminium Oxide, CaO, MgO

Aluminium Oxide, CaO, Iron(III) Oxide, MgO, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5-66-7

1 7

👆🏻

Grain Size

Medium to Fine Coarse Grained

Medium Grained

Fracture

Fibrous

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Earthy

Vitreous

Compressive Strength

40.00 N/mm²115.00 N/mm²

0.15 450

👆🏻

Cleavage

Indiscernible

Toughness

1.9

Specific Gravity

3.4-3.72.6-2.8

0 8.4

👆🏻

Transparency

Opaque

Transparent to Translucent

Density

0-300 g/cm³2.32-2.42 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.72 kJ/Kg K0.75 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Israel, Russia, South Korea, Thailand, Turkey

Africa

Western Africa

Ethiopia, Morocco, South Africa, Zimbabwe

Europe

United Kingdom

England, Italy, Norway, Scotland, Sweden, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Bahamas, Canada, USA

South America

Brazil, Colombia, Ecuador

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New Zealand, Queensland, Western Australia

All about Metapelite and Quartzite Properties

Know all about Metapelite and Quartzite properties here. All properties of rocks are important as they define the type of rock and its application. Metapelite and Quartzite belong to Metamorphic Rocks.Texture of Metapelite is Foliated whereas that of Quartzite is Foliated, Granular. Metapelite appears Banded and Quartzite appears Lustrous. The luster of Metapelite is earthy while that of Quartzite is vitreous. Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors whereas Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. The commercial uses of Metapelite are commemorative tablets, creating artwork and that of Quartzite are an oil and gas reservoir, as armour rock for sea walls, cemetery markers, commemorative tablets, in aquifers, laboratory bench tops, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.