Adamellite and Banded iron formation

Adamellite

Definition

Adamellite is a coarse-grained porphyritic igneous rock, a variety of Monzogranite and dominated by phenocrysts of orthoclase in a granular groundmass of perthite, plagioclase and quartz

Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age

History

Origin

Italy

Western Australia, Minnesota

Discoverer

Unknown

Etymology

From German adamellit and from Monte Adamello, a mountain in Italy, its locality

From its formation process

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Not Applicable

Other Categories

Coarse Grained Rock, Opaque Rock

Texture

Porphyritic

Banded, Trellis

Color

Black, Grey, Orange, Pink, White

Red, Reddish Brown

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Yes

Acid Resistant

Yes

Appearance

Veined or Pebbled

Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Decorative Aggregates, Homes

Exterior Uses

As Building Stone, As Facing Stone, Bridges, Paving Stone, Near Swimming Pools, Office Buildings, Resorts

Paving Stone, Office Buildings

Other Architectural Uses

Curbing

Curbing, Whetstones

Industry

Construction Industry

As Dimension Stone

As Dimension Stone, Used for flooring, stair treads, borders and window sills.

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

As a touchstone, Cemetery Markers, Creating Artwork

Types

Not Available

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

Features

Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Is one of the oldest rock

Archaeological Significance

Monuments

Used

Not Yet Used

Famous Monuments

Data Not Available

Not Applicable

Sculpture

Used

Not Yet Used

Famous Sculptures

Data Not Available

Not Applicable

Pictographs

Not Used

Petroglyphs

Not Used

Figurines

Used

Not Yet Used

Fossils

Absent

Present

Formation

Adamellite is a type of Igneous rock which is formed through the cooling and solidification of lava or magma and is a variety of Monzogranite.

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.

Composition

Mineral Content

Apatite, Biotite, Chlorite, Orthoclase, Perthite, Plagioclase, Quartz, Titanite, Zircon

Hematite, Magnetite, Quartz

Compound Content

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

Fe, Iron(III) Oxide, Silicon Dioxide

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Not Applicable

Weathering

Yes

Types of Weathering

Biological Weathering

Chemical Weathering

Erosion

Yes

Types of Erosion

Chemical Erosion, Glacier Erosion, Wind Erosion

Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-7

5.5-6

Grain Size

Coarse Grained

Large and Coarse Grained

Fracture

Not Available

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Dull to Grainy with Sporadic parts Pearly and Vitreous

Earthy

Compressive Strength

175.00 N/mm²

Not Available

Cleavage

Not Available

Imperfect

Toughness

Not Available

1.5

Specific Gravity

2.6-2.7

5.0-5.3

Transparency

Opaque

Translucent to Opaque

Density

2.6-2.8 g/cm³

Not Available

Thermal Properties

Specific Heat Capacity

0.79 kJ/Kg K

3.20 kJ/Kg K

Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

Africa

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Kenya, Morocco, South Africa, Tanzania

Europe

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela

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

Others

Not Yet Found

Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, USA

Canada, Mexico, USA

South America

Not Yet Found

Bolivia, Brazil

Deposits in Oceania Continent

Australia

Not Yet Found

New South Wales, Queensland, South Australia, Western Australia

Summary >>

<< Reserves

All about Adamellite and Banded iron formation Properties

Know all about Adamellite and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Adamellite belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Adamellite is Porphyritic whereas that of Banded iron formation is Banded, Trellis. Adamellite appears Veined or Pebbled and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Adamellite is dull to grainy with sporadic parts pearly and vitreous while that of Banded iron formation is earthy. Adamellite is available in black, grey, orange, pink, white colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Adamellite are curling, gemstone, laboratory bench tops, tombstones and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.