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Dolomite
Dolomite

Essexite 
Essexite 



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Dolomite
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Essexite 

Dolomite vs Essexite 

Definition

Definition

Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock

History

Origin

Southern Alps, France
USA

Discoverer

Dolomieu
Unknown

Etymology

From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock
From the locality in Essex County, Massachusetts,US

Class

Sedimentary Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

-
Plutonic

Other Categories

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

Texture

Texture

Earthy
Granular

Color

Black, Brown, Green, Grey, Pink, White
Dark Grey to Black

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy or Pearly
Banded

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

-
Curbing

Industry

Construction Industry

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Taken as a Supplement for Calcium or Magnesium
-

Antiquity Uses

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

Other Uses

Commercial Uses

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)
Cemetery Markers, Commemorative Tablets, Jewelry, Sea Defence, Tombstones

Types

Types

Boninite and Jasperoid
Intermediate volcanic rock

Features

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits
Is one of the oldest rock, Smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.
Essexite is a type of igneous rock, which is usually dark grey to black plutonic rock. For the formation of essexite, suitable magma with exact composition of K, Ba, Rb, Cs, Sr should be produced.

Composition

Mineral Content

Clay Minerals, Pyrite, Quartz, Sulfides
Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene

Compound Content

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO
Aluminium Oxide, Ba, Ca, Cs, Potassium, Rb, Sodium, Sr

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

Weathering

Types of Weathering

-
Biological Weathering, Chemical Weathering

Erosion

Types of Erosion

-
Coastal Erosion, Glacier Erosion, Water Erosion

Properties

Physical Properties

Hardness

3.5-47
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Fine Grained

Fracture

Conchoidal
Conchoidal

Streak

White
Black

Porosity

Less Porous
Highly Porous

Luster

Vitreous and Pearly
-

Compressive Strength

140.00 N/mm2120.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

1
1.6

Specific Gravity

2.8-3-9999
0 8.4
👆🏻

Transparency

Transparent to Translucent
Opaque

Density

2.8-2.9 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.79 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India
India, Russia

Africa

Morocco, Namibia
South Africa

Europe

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

Others

-
Greenland

Deposits in Western Continents

North America

Mexico, USA
Canada, USA

South America

Brazil, Colombia
Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Yorke Peninsula
New Zealand, Queensland

Dolomite vs Essexite  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 Dolomite and Essexite  Reserves. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. 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 Dolomite vs Essexite  information and Dolomite vs Essexite  characteristics in the upcoming sections.

Dolomite vs Essexite  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. Dolomite vs Essexite  characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dolomite and Properties of Essexite . Learn more about Dolomite vs Essexite  in the next section. The interior uses of Dolomite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Essexite  include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Dolomite and Essexite , they have various applications in construction industry. The uses of Dolomite in construction industry include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics, Serves as an oil and gas reservoir rock and that of Essexite  include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Dolomite and Essexite 

Here you can know more about Dolomite and Essexite . The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dolomite and Essexite  consists of mineral content and compound content. The mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Essexite  includes Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Dolomite vs Essexite , the texture, color and appearance plays an important role in determining the type of rock. Dolomite is available in black, brown, green, grey, pink, white colors whereas, Essexite  is available in dark grey to black colors. Appearance of Dolomite is Glassy or Pearly and that of Essexite  is Banded. Properties of rock is another aspect for Dolomite vs Essexite . The hardness of Dolomite is 3.5-4 and that of Essexite  is 7. The types of Dolomite are Boninite and Jasperoid whereas types of Essexite  are Intermediate volcanic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dolomite is white while that of Essexite  is black. The specific heat capacity of Dolomite is 0.92 kJ/Kg K and that of Essexite  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.Dolomite is heat resistant, pressure resistant, wear resistant whereas Essexite  is impact resistant, pressure resistant, wear resistant.