Picrite

Foidolite

Picrite vs Foidolite

Picrite

Foidolite

Add ⊕

Definition

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

Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%

History

Origin

Hawaii Islands

Discoverer

Unknown

Etymology

From Greek pikros bitter + -ite, 19th century

From the mineral feldspathoid which is the main content of rock

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Soft Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

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

Texture

Earthy, Rough

Earthy

Color

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

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Shiny

Dull

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

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.

As Dimension Stone, Cement Manufacture, for Road Aggregate

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

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

Cemetery Markers, Commemorative Tablets, Creating Artwork

Types

Oceanite

Igneous rock

Features

Host Rock for Lead

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

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.

Foidolites 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

Biotite, Olivine, Plagioclase, Pyrrhotite

Amphibole, Biotite, Feldspar, Olivine, Plagioclase, Pyroxene

Compound Content

Al, CaO, Carbon Dioxide, Mg, MgO

Aluminium Oxide, CaO, Iron(III) Oxide, FeO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Impact 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

6.81.5

1 7

👆🏻

Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Uneven

Conchoidal

Streak

White, Greenish White or Grey

White

Porosity

Less Porous

Very Less Porous

Luster

Subvitreous to Dull

Compressive Strength

189.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

Specific Gravity

2.75-2.922.86

0 8.4

👆🏻

Transparency

Opaque

Translucent

Density

1.5-2.5 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.88 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

Russia

Africa

South Africa

South Africa, Western Africa

Europe

Iceland

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

Picrite vs Foidolite 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 Foidolite Reserves. Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. 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 Foidolite information and Picrite vs Foidolite characteristics in the upcoming sections.

Compare Igneous Rocks » More

Picrite vs Larvikite

Picrite vs Kenyte

Picrite vs Mangerite

» More Compare Igneous Rocks

Picrite vs Foidolite 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 Foidolite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Picrite and Properties of Foidolite. Learn more about Picrite vs Foidolite in the next section. The interior uses of Picrite include Countertops, Decorative aggregates, Homes and Interior decoration whereas the interior uses of Foidolite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Picrite and Foidolite, 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 Foidolite include As dimension stone, Cement manufacture, For road aggregate.

More about Picrite and Foidolite

Here you can know more about Picrite and Foidolite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Picrite and Foidolite consists of mineral content and compound content. The mineral content of Picrite includes Biotite, Olivine, Plagioclase, Pyrrhotite and mineral content of Foidolite includes Amphibole, Biotite, Feldspar, Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Picrite vs Foidolite, the texture, color and appearance plays an important role in determining the type of rock. Picrite is available in black, brown, green, grey, pink, white, yellow colors whereas, Foidolite is available in black, brown, green, grey, pink, white colors. Appearance of Picrite is Rough and Shiny and that of Foidolite is Dull. Properties of rock is another aspect for Picrite vs Foidolite. The hardness of Picrite is 6.8 and that of Foidolite is 1.5. The types of Picrite are Oceanite whereas types of Foidolite are Igneous rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Picrite and Foidolite is white, greenish white or grey. The specific heat capacity of Picrite is 0.88 kJ/Kg K and that of Foidolite is 0.79 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 Foidolite is heat resistant, wear resistant.