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Banded iron formation
Banded iron formation

Phyllite
Phyllite



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Banded iron formation
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Phyllite

Banded iron formation vs Phyllite

Definition

Definition

Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks

History

Origin

Western Australia, Minnesota
-

Discoverer

Johann Gottlob Lehmann
Unknown

Etymology

From its formation process
From Greek phullon leaf + -ite1

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Banded, Trellis
Phyllitic Sheen, Slaty

Color

Red, Reddish Brown
Black to Grey, Light Greenish Grey

Maintenance

Less
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Crinkled or Wavy

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing, Whetstones
Curbing

Industry

Construction Industry

As Dimension Stone, Used for flooring, stair treads, borders and window sills.
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone

Medical Industry

-
-

Antiquity Uses

Artifacts
Artifacts, Sculpture

Other Uses

Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates

Types

Types

Algoma-type , Lake Superior-type, Superior-type and Taconite
Phyllite

Features

Is one of the oldest rock
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

The banded iron layers are formed in sea water when oxygen is released by photosynthetic cyano-bacteria. The oxygen then combines with dissolved iron in ocean to form insoluble iron oxides, which precipitated out, forming a thin layer of banded iron formation on ocean floor.
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.

Composition

Mineral Content

Hematite, Magnetite, Quartz
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide
CaO, Carbon Dioxide, MgO

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

5.5-61-2
1 7
👆🏻

Grain Size

Large and Coarse Grained
Medium to Fine Coarse Grained

Fracture

Uneven, Splintery or Conchoidal
Conchoidal

Streak

White
White

Porosity

Highly Porous
Highly Porous

Luster

Earthy
Phyllitic

Compressive Strength

220.00 N/mm250.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Crenulation and Pervasive

Toughness

1.5
1.2

Specific Gravity

5.0-5.32.72-2.73
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

-9999 g/cm32.18-3.3 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K0.79 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam

Africa

Kenya, Morocco, South Africa, Tanzania
Egypt, Ethiopia, Morocco, Nigeria, South Africa

Europe

Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland

Others

Greenland, Mid-Atlantic Ridge
-

Deposits in Western Continents

North America

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

South America

Bolivia, Brazil
Brazil, Colombia, Guyana

Deposits in Oceania Continent

Australia

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

Banded iron formation vs Phyllite 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 Banded iron formation and Phyllite Reserves. Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age. Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Banded iron formation vs Phyllite information and Banded iron formation vs Phyllite characteristics in the upcoming sections.

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

More about Banded iron formation and Phyllite

Here you can know more about Banded iron formation and Phyllite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Banded iron formation and Phyllite consists of mineral content and compound content. The mineral content of Banded iron formation includes Hematite, Magnetite, Quartz and 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. You can also check out the list of all Sedimentary Rocks. When we have to compare Banded iron formation vs Phyllite, the texture, color and appearance plays an important role in determining the type of rock. Banded iron formation is available in red, reddish brown colors whereas, Phyllite is available in black to grey, light greenish grey colors. Appearance of Banded iron formation is Layered, Banded, Veined and Shiny and that of Phyllite is Crinkled or Wavy. Properties of rock is another aspect for Banded iron formation vs Phyllite. The hardness of Banded iron formation is 5.5-6 and that of Phyllite is 1-2. The types of Banded iron formation are Algoma-type , Lake Superior-type, Superior-type and Taconite whereas types of Phyllite are Phyllite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Banded iron formation and Phyllite is white. The specific heat capacity of Banded iron formation is 3.20 kJ/Kg K and that of Phyllite 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.Banded iron formation is heat resistant, impact resistant, pressure resistant, wear resistant whereas Phyllite is heat resistant, pressure resistant, water resistant.