×

Limestone
Limestone

Picrite
Picrite



ADD
Compare
X
Limestone
X
Picrite

Limestone vs Picrite

Add ⊕

Definition

Definition

Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

History

Origin

New Zealand
Hawaii Islands

Discoverer

Belsazar Hacquet
Unknown

Etymology

From lime and stone in late 14th Century
From Greek pikros bitter + -ite, 19th century

Class

Sedimentary Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

-
Volcanic

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Clastic or Non-Clastic
Earthy, Rough

Color

Beige, Black, Blue, Brown, Cream, Gold, Green, Grey, Light Green, Light Grey, Linen, Pink, Red, Rust, Silver, White, Yellow
Black, Brown, Green, Grey, Pink, White, Yellow

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Banded
Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Cement Manufacture, Cobblestones, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar, Roadstone, 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

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Animal feed filler, As a Feed Additive for Livestock, Paper Industry, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Used in aquariums, Whiting material in toothpaste, paint and paper
As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

Types

Types

Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa
Oceanite

Features

Host Rock for Lead, Stalactites and stalagmites are formed from this rock, Zinc and Copper Deposits
Host Rock for Lead

Archaeological Significance

Monuments

-
-

Famous Monuments

Acropolis of Athens in Greece, Agia Sophia in Istanbul, Turkey, Al Aqsa Mosque in Jerusalem, Angkor Wat in Cambodia, Big Ben in London, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Chichen Itza in Mexico, Empire State Building in New York, Khajuraho Temples, India, Kremlin in Moscow, Louvre in Paris, France, Neuschwanstein in Bavaria, Potala Palace in Lahasa, Tibet, Wailing Wall in Jerusalem
-

Sculpture

-
-

Famous Sculptures

Ajanta Caves in Maharashtra, India, Elephanta Caves in Maharashtra, India
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Limestone is a sedimentary rock which is mainly made up of calcium carbonate.
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

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
Biotite, Olivine, Plagioclase, Pyrrhotite

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, MgO
Al, CaO, Carbon Dioxide, Mg, MgO

Transformation

Metamorphism

Types of Metamorphism

-
Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

3-46.8
1 7
👆🏻

Grain Size

Fine Grained
Fine Grained

Fracture

Splintery
Uneven

Streak

White
White, Greenish White or Grey

Porosity

Less Porous
Less Porous

Luster

Dull to Pearly
Subvitreous to Dull

Compressive Strength

115.00 N/mm2189.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1
2.1

Specific Gravity

2.3-2.72.75-2.92
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.3-2.7 g/cm31.5-2.5 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.91 kJ/Kg K0.88 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Pressure Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
India, Russia

Africa

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
South Africa

Europe

United Kingdom
Iceland

Others

-
-

Deposits in Western Continents

North America

USA
Canada, USA

South America

Colombia
Brazil

Deposits in Oceania Continent

Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
-

Limestone vs Picrite 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 Limestone and Picrite Reserves. Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate. Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. 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 Limestone vs Picrite information and Limestone vs Picrite characteristics in the upcoming sections.

Limestone vs Picrite 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. Limestone vs Picrite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Limestone and Properties of Picrite. Learn more about Limestone vs Picrite in the next section. The interior uses of Limestone include Decorative aggregates and Interior decoration whereas the interior uses of Picrite include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Limestone and Picrite, they have various applications in construction industry. The uses of Limestone in construction industry include Cement manufacture, Cobblestones, For road aggregate, Production of glass and ceramics, Raw material for the manufacture of mortar, Roadstone, Source of calcium and that of Picrite 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..

More about Limestone and Picrite

Here you can know more about Limestone and Picrite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Limestone and Picrite consists of mineral content and compound content. The mineral content of Limestone includes Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt and mineral content of Picrite includes Biotite, Olivine, Plagioclase, Pyrrhotite. You can also check out the list of all Sedimentary Rocks. When we have to compare Limestone vs Picrite, the texture, color and appearance plays an important role in determining the type of rock. Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors whereas, Picrite is available in black, brown, green, grey, pink, white, yellow colors. Appearance of Limestone is Rough and Banded and that of Picrite is Rough and Shiny. Properties of rock is another aspect for Limestone vs Picrite. The hardness of Limestone is 3-4 and that of Picrite is 6.8. The types of Limestone are Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa whereas types of Picrite are Oceanite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Limestone is white while that of Picrite is white, greenish white or grey. The specific heat capacity of Limestone is 0.91 kJ/Kg K and that of Picrite is 0.88 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Limestone is pressure resistant whereas Picrite is heat resistant.