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Phyllite
Phyllite

Dunite
Dunite



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Phyllite
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Phyllite vs Dunite

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Definition

Definition

Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine

History

Origin

Unknown
New Zealand

Discoverer

Unknown
Ferdinand von Hochstetter

Etymology

From Greek phullon leaf + -ite1
From the name of Dun Mountain, New Zealand, + -ite1

Class

Metamorphic Rocks
Igneous Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock

Family

Group

Not Applicable
Plutonic

Other Categories

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

Texture

Texture

Phyllitic Sheen, Slaty
Phaneritic

Color

Black to Grey, Light Greenish Grey
Dark Greenish - Grey

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Crinkled or Wavy
Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

Medical Industry

Not Available
Not Available

Antiquity Uses

Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds

Types

Types

Not Available
Not Available

Features

Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock

Archaeological Significance

Monuments

Not Yet Used
Used

Famous Monuments

Not Applicable
Not Available

Sculpture

Used
Used

Famous Sculptures

Not Available
Not Available

Pictographs

Used
Used

Petroglyphs

Used
Used

Figurines

Used
Used

Fossils

Absent
Absent

Formation

Formation

Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.
Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.

Composition

Mineral Content

Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene

Compound Content

CaO, Carbon Dioxide, MgO
Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

1-23.5-4
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Coarse Grained

Fracture

Conchoidal
Irregular

Streak

White
White

Porosity

Highly Porous
Less Porous

Luster

Phyllitic
Shiny

Compressive Strength

NA107.55 N/mm2
0.15 450
👆🏻

Cleavage

Crenulation and Pervasive
Not Available

Toughness

1.2
2.1

Specific Gravity

2.72-2.733-3.01
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

2.18-3.3 g/cm32.84-2.85 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

NA1.25 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey

Africa

Egypt, Ethiopia, Morocco, Nigeria, South Africa
Morocco, South Africa

Europe

Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland

Others

Not Available
Not Available

Deposits in Western Continents

North America

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

South America

Brazil, Colombia, Guyana
Argentina, Brazil, Colombia, Ecuador, Venezuela

Deposits in Oceania Continent

Australia

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

Phyllite vs Dunite 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 Phyllite and Dunite Reserves. Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. Dunite is a green to brownish coarse-grained igneous rock mainly consisting of 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 Phyllite vs Dunite information and Phyllite vs Dunite characteristics in the upcoming sections.

Phyllite vs Dunite 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. Phyllite vs Dunite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Phyllite and Properties of Dunite. Learn more about Phyllite vs Dunite in the next section. The interior uses of Phyllite include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Dunite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Phyllite and Dunite, they have various applications in construction industry. The uses of Phyllite in construction industry include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate, Raw material for the manufacture of mortar, Roadstone and that of Dunite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Phyllite and Dunite

Here you can know more about Phyllite and Dunite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Phyllite and Dunite consists of mineral content and compound content. The mineral content of Phyllite includes Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon and mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Phyllite vs Dunite, the texture, color and appearance plays an important role in determining the type of rock. Phyllite is available in black to grey, light greenish grey colors whereas, Dunite is available in dark greenish - grey colors. Appearance of Phyllite is Crinkled or Wavy and that of Dunite is Rough and Shiny. Properties of rock is another aspect for Phyllite vs Dunite. The hardness of Phyllite is 1-2 and that of Dunite is 3.5-4. The types of Phyllite are Not Available whereas types of Dunite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Phyllite and Dunite is white. The specific heat capacity of Phyllite is Not Available and that of Dunite is 1.25 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Phyllite is heat resistant, pressure resistant, water resistant whereas Dunite is heat resistant, pressure resistant, wear resistant.