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Eclogite
Eclogite

Novaculite
Novaculite



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Eclogite
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Novaculite

Eclogite vs Novaculite

Definition

Definition

Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture

History

Origin

-
-

Discoverer

René Just Haüy
Unknown

Etymology

From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
From Latin word novacula, for razor stone

Class

Metamorphic Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Earthy
Banded, Glassy, Rough, Vitreous

Color

Black, Brown, Green, Grey, Pink, White
Black, Brown, Green, Grey, Red, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull, Banded and Foilated
Glassy or Pearly

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Countertops, Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

Paving Stone, Garden Decoration
As Building Stone, Garden Decoration

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

-
Arrowheads, Building houses or walls, Cement Manufacture, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives, Landscaping, Making natural cement, Production of Glass and Ceramics, Rail Track Ballast, Roadstone, Spear Points, Used to sharpen metal tools and weapons

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
-

Antiquity Uses

Artifacts
Artifacts, Monuments

Other Uses

Commercial Uses

Creating Artwork, Gemstone
Cemetery Markers, Gemstone, In aquifers, In fire-starting tools, Jewelry, Manufacture of tools, Pebbles are used in ball mills to grind in ceramics industry, To determine the gold content of jewelry

Types

Types

Eclogite
Sedimentary rock

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Present

Formation

Formation

Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.
Novaculite forms when microcrystals of silicon dioxide grow within soft sediments that become limestone or chalk. The formation of Novaculite can be either of chemical or biological origin.

Composition

Mineral Content

Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite
Quartz, Silicon

Compound Content

Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium
Ca, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Sea Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

3.5-47
1 7
👆🏻

Grain Size

Fine Grained
Fine Grained

Fracture

-
Conchoidal

Streak

White
-

Porosity

Less Porous
Less Porous

Luster

Subvitreous to Dull
Waxy and Dull

Compressive Strength

200.00 N/mm2450.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

-
1.5

Specific Gravity

2.86-2.872.5-2.7
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

3.2-3.6 g/cm32.7 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K0.74 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

Africa

Ethiopia, Morocco, South Africa
Kenya, Morocco, South Africa, Tanzania

Europe

France, Germany, Italy, Norway, Scotland
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom

Others

Greenland
Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

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

South America

Argentina, Brazil, Colombia, Ecuador
Bolivia, Brazil

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland
New South Wales, Queensland, South Australia, Western Australia

Eclogite vs Novaculite 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 Eclogite and Novaculite Reserves. Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture. 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 Eclogite vs Novaculite information and Eclogite vs Novaculite characteristics in the upcoming sections.

Eclogite vs Novaculite 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. Eclogite vs Novaculite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Eclogite and Properties of Novaculite. Learn more about Eclogite vs Novaculite in the next section. The interior uses of Eclogite include Decorative aggregates and Interior decoration whereas the interior uses of Novaculite include Countertops, Decorative aggregates, Flooring and Interior decoration. Due to some exceptional properties of Eclogite and Novaculite, they have various applications in construction industry. The uses of Eclogite in construction industry include and that of Novaculite include Arrowheads, Building houses or walls, Cement manufacture, Construction aggregate, Cutting tool, For road aggregate, Knives, Landscaping, Making natural cement, Production of glass and ceramics, Rail track ballast, Roadstone, Spear points, Used to sharpen metal tools and weapons.

More about Eclogite and Novaculite

Here you can know more about Eclogite and Novaculite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Eclogite and Novaculite consists of mineral content and compound content. The mineral content of Eclogite includes Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite and mineral content of Novaculite includes Quartz, Silicon. You can also check out the list of all Metamorphic Rocks. When we have to compare Eclogite vs Novaculite, the texture, color and appearance plays an important role in determining the type of rock. Eclogite is available in black, brown, green, grey, pink, white colors whereas, Novaculite is available in black, brown, green, grey, red, white colors. Appearance of Eclogite is Dull, Banded and Foilated and that of Novaculite is Glassy or Pearly. Properties of rock is another aspect for Eclogite vs Novaculite. The hardness of Eclogite is 3.5-4 and that of Novaculite is 7. The types of Eclogite are Eclogite whereas types of Novaculite are Sedimentary rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Eclogite is white while that of Novaculite is . The specific heat capacity of Eclogite is 0.75 kJ/Kg K and that of Novaculite is 0.74 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Eclogite is heat resistant whereas Novaculite is heat resistant, impact resistant, pressure resistant, wear resistant.