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Wehrlite
Wehrlite

Novaculite
Novaculite



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Wehrlite
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Wehrlite vs Novaculite

Definition

Definition

Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites
Novaculite is a dense, hard, fine-grained, siliceous metamorpic rock which is a type of chert that breaks with conchoidal fracture

History

Origin

Egypt
-

Discoverer

Alois Wehrle
Unknown

Etymology

From the name of a professor, Alois Wehrle
From Latin word novacula, for razor stone

Class

Igneous Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Plutonic
-

Other Categories

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

Texture

Texture

Banded
Banded, Glassy, Rough, Vitreous

Color

Dark Greenish - Grey, Green
Black, Brown, Green, Grey, Red, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Banded
Glassy or Pearly

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones
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

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork, Gemstone, Jewelry
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

Ultramafic rock
Sedimentary rock

Features

Constitutes upper part of the Earth's mantle, 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

Wehrlite 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.
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

Pyroxene
Quartz, Silicon

Compound Content

Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion

Properties

Physical Properties

Hardness

5.5-67
1 7
👆🏻

Grain Size

Coarse Grained
Fine Grained

Fracture

Irregular
Conchoidal

Streak

White
-

Porosity

Less Porous
Less Porous

Luster

Metallic
Waxy and Dull

Compressive Strength

100.00 N/mm2450.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.1
1.5

Specific Gravity

8.42.5-2.7
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

2.6-3.7 g/cm32.7 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.63 kJ/Kg K0.74 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

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

Africa

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

Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom

Others

-
Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, USA
Canada, Mexico, USA

South America

Brazil
Bolivia, Brazil

Deposits in Oceania Continent

Australia

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

Wehrlite 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 Wehrlite and Novaculite Reserves. Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites. 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 Wehrlite vs Novaculite information and Wehrlite vs Novaculite characteristics in the upcoming sections.

Wehrlite 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. Wehrlite vs Novaculite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Wehrlite and Properties of Novaculite. Learn more about Wehrlite vs Novaculite in the next section. The interior uses of Wehrlite 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 Wehrlite and Novaculite, they have various applications in construction industry. The uses of Wehrlite in construction industry include As dimension stone, Cobblestones 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 Wehrlite and Novaculite

Here you can know more about Wehrlite and Novaculite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Wehrlite and Novaculite consists of mineral content and compound content. The mineral content of Wehrlite includes Pyroxene and mineral content of Novaculite includes Quartz, Silicon. You can also check out the list of all Igneous Rocks. When we have to compare Wehrlite vs Novaculite, the texture, color and appearance plays an important role in determining the type of rock. Wehrlite is available in dark greenish - grey, green colors whereas, Novaculite is available in black, brown, green, grey, red, white colors. Appearance of Wehrlite is Rough and Banded and that of Novaculite is Glassy or Pearly. Properties of rock is another aspect for Wehrlite vs Novaculite. The hardness of Wehrlite is 5.5-6 and that of Novaculite is 7. The types of Wehrlite are Ultramafic rock 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 Wehrlite is white while that of Novaculite is . The specific heat capacity of Wehrlite is 0.63 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.Wehrlite is heat resistant, impact resistant, pressure resistant whereas Novaculite is heat resistant, impact resistant, pressure resistant, wear resistant.