Picrite

Whiteschist

Picrite vs Whiteschist

Picrite

Whiteschist

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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

Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures

1.2 History

1.2.1 Origin

Hawaii Islands

Tasmania

1.2.2 Discoverer

Unknown

1.3 Etymology

From Greek pikros bitter + -ite, 19th century

From French schiste, Greek skhistos i.e. split

1.4 Class

Igneous Rocks

Metamorphic 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

Fine Grained Rock, Medium Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy, Rough

Foliated

2.2 Color

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

Colourless, Green, Grey, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

81% Igneous Rocks Rocks have it !

✔ ✘

81% Metamorphic Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

86% Igneous Rocks Rocks have it !

✔ ✘

65% Metamorphic Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

66% Igneous Rocks Rocks have it !

✔ ✘

42% Metamorphic Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

49% Igneous Rocks Rocks have it !

✔ ✘

19% Metamorphic Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

48% Igneous Rocks Rocks have it !

✔ ✘

15% Metamorphic Rocks Rocks have it !

2.5 Appearance

Rough and Shiny

Banded and Foilated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

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

Garden Decoration, Paving Stone

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 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.

for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

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

Creating Artwork, Gemstone, Jewelry, Production of Lime

4 Types

4.1 Types

Oceanite

Not Available

4.2 Features

Host Rock for Lead

High percentage of mica, Host Rock for Lead

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 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.

Whiteschist is formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.

5.2 Composition

5.2.1 Mineral Content

Biotite, Olivine, Plagioclase, Pyrrhotite

Carbonate, Coesite, Quartz, Silica

5.2.2 Compound Content

Al, CaO, Carbon Dioxide, Mg, MgO

CaO, Mg, MgO, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

97% Igneous Rocks Rocks have it !

✔ ✘

50% Metamorphic Rocks Rocks have it !

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

99% Igneous Rocks Rocks have it !

✔ ✘

65% Metamorphic Rocks Rocks have it !

5.3.4 Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

92% Igneous Rocks Rocks have it !

✔ ✘

77% Metamorphic Rocks Rocks have it !

5.3.6 Types of Erosion

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

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

6.8

1.5

6.1.2 Grain Size

Fine Grained

Fine to Medium Grained

6.1.3 Fracture

Uneven

Conchoidal

6.1.4 Streak

White, Greenish White or Grey

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Subvitreous to Dull

6.1.7 Compressive Strength

Flint

⊕

▶

▼

189.00 N/mm²

Rank: 11 (Overall)▶

200.00 N/mm²

Rank: 10 (Overall)▶

▲

Obsidian

⊕

▶

175 (Granite)

◀ ▶ ADD ⊕

6.1.8 Cleavage

Imperfect

Perfect

6.1.9 Toughness

2.1

6.1.10 Specific Gravity

2.75-2.92

2.86

6.1.11 Transparency

Opaque

6.1.12 Density

1.5-2.5 g/cm³

2.8-2.9 g/cm³

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

Banded iron for..

⊕

▶

▼

0.88 kJ/Kg K

Rank: 13 (Overall)▶

0.92 kJ/Kg K

Rank: 10 (Overall)▶

▲

Granulite

⊕

▶

1.09 (Travertine)

◀ ▶ ADD ⊕

6.2.2 Resistance

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Russia

Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam

7.1.2 Africa

South Africa

Egypt, Ethiopia, Morocco, Nigeria, South Africa

7.1.3 Europe

Iceland

Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

Canada, Costa Rica, Cuba, Mexico, Panama, USA

7.2.2 South America

Brazil

Brazil, Colombia, Guyana

7.3 Deposits in Oceania Continent

7.3.1 Australia

Not Yet Found

New South Wales, New Zealand, Queensland

Picrite vs Whiteschist 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 Picrite and Whiteschist Reserves. Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures. 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 Picrite vs Whiteschist information and Picrite vs Whiteschist characteristics in the upcoming sections.

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Picrite vs Whiteschist 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. Picrite vs Whiteschist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Picrite and Properties of Whiteschist. Learn more about Picrite vs Whiteschist in the next section. The interior uses of Picrite include Countertops, Decorative aggregates, Homes and Interior decoration whereas the interior uses of Whiteschist include Decorative aggregates and Interior decoration. Due to some exceptional properties of Picrite and Whiteschist, they have various applications in construction industry. The uses of Picrite in construction industry include 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. and that of Whiteschist include For road aggregate.

More about Picrite and Whiteschist

Here you can know more about Picrite and Whiteschist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Picrite and Whiteschist consists of mineral content and compound content. The mineral content of Picrite includes Biotite, Olivine, Plagioclase, Pyrrhotite and mineral content of Whiteschist includes Carbonate, Coesite, Quartz, Silica. You can also check out the list of all Igneous Rocks. When we have to compare Picrite vs Whiteschist, the texture, color and appearance plays an important role in determining the type of rock. Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors whereas, Whiteschist is available in colourless, green, grey, white colors. Appearance of Picrite is Rough and Shiny and that of Whiteschist is Banded and Foilated. Properties of rock is another aspect for Picrite vs Whiteschist. The hardness of Picrite is 6.8 and that of Whiteschist is 1.5. The types of Picrite are Oceanite whereas types of Whiteschist are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Picrite and Whiteschist is white, greenish white or grey. The specific heat capacity of Picrite is 0.88 kJ/Kg K and that of Whiteschist is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Picrite is heat resistant whereas Whiteschist is heat resistant.