Picrite

Mudstone

Picrite and Mudstone

Picrite

Mudstone

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1 Definition

1.1 Definition

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

Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations

1.2 History

1.2.1 Origin

Hawaii Islands

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From Greek pikros bitter + -ite, 19th century

From the English mud and stone, from low German mudde and stainaz

1.4 Class

Igneous Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Volcanic

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy, Rough

Clastic

2.2 Color

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

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.4 Stain Resistant

✔ ✘

3.1.2 Wind Resistant

✔ ✘

3.1.5 Acid Resistant

✔ ✘

3.3 Appearance

Rough and Shiny

Rough and Dull

4 Uses

4.1 Architecture

4.1.1 Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Entryways, Floor Tiles, Interior Decoration

4.1.2 Exterior Uses

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

As Building Stone, As Facing Stone, Paving Stone, Roof Tiles

4.2.2 Other Architectural Uses

Curbing

4.3 Industry

4.3.1 Construction Industry

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.

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

4.3.2 Medical Industry

Not Yet Used

4.4 Antiquity Uses

Artifacts, Monuments, Sculpture

Sculpture, Small Figurines

4.5 Other Uses

4.5.1 Commercial Uses

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

Creating Artwork, Pottery

5 Types

5.1 Types

Oceanite

Marl, Shale and Argillite

5.2 Features

Host Rock for Lead

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock

5.3 Archaeological Significance

5.3.1 Monuments

Used

Not Yet Used

5.3.2 Famous Monuments

Data Not Available

Not Applicable

5.3.3 Sculpture

Used

5.3.4 Famous Sculptures

Data Not Available

5.3.5 Pictographs

Not Used

Used

5.3.6 Petroglyphs

Not Used

Used

5.3.7 Figurines

Used

5.4 Fossils

Absent

Present

6 Formation

6.1 Formation

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.

Mudstone forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are buried and compacted by overlying sediment hence forming mudstone.

6.2 Composition

6.2.1 Mineral Content

Biotite, Olivine, Plagioclase, Pyrrhotite

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

6.2.2 Compound Content

Al, CaO, Carbon Dioxide, Mg, MgO

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, Silicon Dioxide

6.3 Transformation

6.3.1 Metamorphism

✔ ✘

6.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Not Applicable

6.3.3 Weathering

✔ ✘

6.3.4 Types of Weathering

Biological Weathering

Chemical Weathering, Mechanical Weathering

6.3.5 Erosion

✔ ✘

6.3.6 Types of Erosion

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

Chemical Erosion, Sea Erosion

7 Properties

7.1 Physical Properties

7.1.1 Hardness

6.82-3

1 7

7.1.2 Grain Size

Fine Grained

Very fine-grained

7.1.3 Fracture

Uneven

Not Available

7.1.4 Streak

White, Greenish White or Grey

White

7.1.5 Porosity

Less Porous

Highly Porous

7.1.6 Luster

Subvitreous to Dull

Dull

7.1.7 Compressive Strength

189.00 N/mm²NA

0.15 450

7.1.8 Cleavage

Imperfect

Perfect

7.1.9 Toughness

2.1

2.6

7.1.10 Specific Gravity

2.75-2.922.2-2.8

0 8.4

7.1.11 Transparency

Opaque

7.1.12 Density

1.5-2.5 g/cm³2.4-2.8 g/cm³

0 1400

7.2 Thermal Properties

7.2.1 Specific Heat Capacity

0.88 kJ/Kg K0.39 kJ/Kg K

0.14 3.2

7.2.2 Resistance

Heat Resistant

Heat Resistant, Impact Resistant

8 Reserves

8.1 Deposits in Eastern Continents

8.1.1 Asia

India, Russia

Bangladesh, China, India, Russia

8.1.2 Africa

South Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

8.1.3 Europe

Iceland

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

8.1.4 Others

Not Yet Found

8.2 Deposits in Western Continents

8.2.1 North America

Canada, USA

USA

8.2.2 South America

Brazil

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

8.3 Deposits in Oceania Continent

8.3.1 Australia

Not Yet Found

New South Wales, New Zealand, Queensland, Victoria, Western Australia

All about Picrite and Mudstone Properties

Know all about Picrite and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Mudstone belongs to Sedimentary Rocks.Texture of Picrite is Earthy, Rough whereas that of Mudstone is Clastic. Picrite appears Rough and Shiny and Mudstone appears Rough and Dull. The luster of Picrite is subvitreous to dull while that of Mudstone is dull. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo) and that of Mudstone are creating artwork, pottery.