Talc carbonate

Picrite

Talc carbonate and Picrite

Talc carbonate

Picrite

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Definition

Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.

Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

History

Origin

China, USA, Middle east

Hawaii Islands

Discoverer

Unknown

Etymology

From medieval Latin, talcum

From Greek pikros bitter + -ite, 19th century

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Very Soft

Earthy, Rough

Color

Grey, White

Black, Brown, Green, Grey, Pink, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Soft

Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

Garden Decoration

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

Other Architectural Uses

Powder

Curbing

Industry

Construction Industry

Source of calcium

As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Manufacturing of baby powder

As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

Types

Sedimentary rock

Oceanite

Features

Easily splits into thin plates, Generally rough to touch, Host Rock for Lead

Host Rock for Lead

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. Talc Carbonate is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Picrite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Carbonate, Chlorite, Magnesium

Biotite, Olivine, Plagioclase, Pyrrhotite

Compound Content

CaO, Carbon Dioxide, MgO

Al, CaO, Carbon Dioxide, Mg, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

1-26.8

1 7

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Grain Size

Fine Grained

Fracture

Flat

Uneven

Streak

White

White, Greenish White or Grey

Porosity

Less Porous

Luster

Pearly

Subvitreous to Dull

Compressive Strength

250.00 N/mm²189.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

Specific Gravity

2.862.75-2.92

0 8.4

👆🏻

Transparency

Translucent

Opaque

Density

2.8-2.9 g/cm³1.5-2.5 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.88 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Wear Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Africa

Ethiopia, Ghana, Western Africa

South Africa

Europe

England

Iceland

Others

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Bolivia, Uruguay

Brazil

Deposits in Oceania Continent

Australia

Central Australia, South Australia, Western Australia

All about Talc carbonate and Picrite Properties

Know all about Talc carbonate and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Talc carbonate belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks.Texture of Talc carbonate is Very Soft whereas that of Picrite is Earthy, Rough. Talc carbonate appears Soft and Picrite appears Rough and Shiny. The luster of Talc carbonate is pearly while that of Picrite is subvitreous to dull. Talc carbonate is available in grey, white colors whereas Picrite is available in black, brown, green, grey, pink, white, yellow colors. The commercial uses of Talc carbonate are manufacturing of baby powder and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).