Lignite

Gabbro

Lignite vs Gabbro

Lignite

Gabbro

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Definition

Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat

Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt

History

Origin

France

Germany

Discoverer

Unknown

Christian Leopold von Buch

Etymology

From French, Latin lignum wood + -ite1

From Latin glaber bare, smooth, bald

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

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

Coarse Grained Rock, Opaque Rock

Texture

Amorphous, Glassy

Phaneritic

Color

Black, Brown, Dark Brown, Grey, Light to Dark Grey

Dark Grey to Black

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Veined and Shiny

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

Construction Industry

for Road Aggregate, Steel Production

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Electricity Generation

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

Types

Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite

Anorthosite Gabbro and Norite Gabbro

Features

Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel

Smooth to touch

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

Coal formation takes place due to accumulation of plant debris in a swamp environment. The Coal formation process continues, as peat turns into lignite brown or black coal at increasing heat and pressure.

Gabbro, a mafic rock, forms due to cooling and crystallization of magma underneath Earth's surface.

Composition

Mineral Content

Augite, Olivine, Plagioclase, Pyroxene

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Impact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Coastal Erosion

Properties

Physical Properties

Hardness

1 7

👆🏻

Grain Size

Medium to Fine Coarse Grained

Coarse Grained

Fracture

Conchoidal

Streak

Black

Porosity

Highly Porous

Luster

Dull to Vitreous to Submetallic

Compressive Strength

-225.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.6

Specific Gravity

1.1-1.42.86-2.87

0 8.4

👆🏻

Transparency

Opaque

Density

800-801 g/cm³2.7-3.3 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.26 kJ/Kg K0.71 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam

India, Russia

Africa

Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania

South Africa

Europe

Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom

Germany, Greece, Italy, Scotland, Turkey

Others

Greenland

Deposits in Western Continents

North America

Canada, Mexico, USA

Canada, USA

South America

Brazil, Chile, Colombia, Venezuela

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Victoria

New Zealand, Queensland

Lignite vs Gabbro 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 Lignite and Gabbro Reserves. Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt. 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 Lignite vs Gabbro information and Lignite vs Gabbro characteristics in the upcoming sections.

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Lignite vs Gabbro 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. Lignite vs Gabbro characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Lignite and Properties of Gabbro. Learn more about Lignite vs Gabbro in the next section. The interior uses of Lignite include whereas the interior uses of Gabbro include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Lignite and Gabbro, they have various applications in construction industry. The uses of Lignite in construction industry include For road aggregate, Steel production and that of Gabbro include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Lignite and Gabbro

Here you can know more about Lignite and Gabbro. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Lignite and Gabbro consists of mineral content and compound content. The mineral content of Lignite includes and mineral content of Gabbro includes Augite, Olivine, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Lignite vs Gabbro, the texture, color and appearance plays an important role in determining the type of rock. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas, Gabbro is available in dark grey to black colors. Appearance of Lignite is Veined or Pebbled and that of Gabbro is Veined and Shiny. Properties of rock is another aspect for Lignite vs Gabbro. The hardness of Lignite is 1 and that of Gabbro is 7. The types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite whereas types of Gabbro are Anorthosite Gabbro and Norite Gabbro. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Lignite and Gabbro is black. The specific heat capacity of Lignite is 1.26 kJ/Kg K and that of Gabbro is 0.71 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Lignite is heat resistant whereas Gabbro is impact resistant, pressure resistant, wear resistant.