Foidolite

Minette

Foidolite and Minette

Foidolite

Minette

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1 Definition

1.1 Definition

Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%

Minette is a variety of Lamprophyre and is porphyritic alkaline igneous rock which is mainly dominated by biotite and potassic feldspar

1.2 History

1.2.1 Origin

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From the mineral feldspathoid which is the main content of rock

From French mine ore, mine + ette

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Plutonic

1.6 Other Categories

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

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Earthy

Porphyritic

2.2 Color

Black, Brown, Colourless, Green, Grey, Pink, White

Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey

2.3 Maintenance

Less

2.4 Durability

Durable

2.5.1 Water Resistant

✔ ✘

2.5.2 Scratch Resistant

✔ ✘

3.1.1 Stain Resistant

✔ ✘

3.2.2 Wind Resistant

✔ ✘

3.2.3 Acid Resistant

✔ ✘

3.3 Appearance

Dull

Dull, Banded and Foilated

4 Uses

4.1 Architecture

4.1.1 Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Interior Decoration

4.1.2 Exterior Uses

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

As Building Stone, As Facing Stone, Garden Decoration

4.1.3 Other Architectural Uses

Curbing

4.2 Industry

4.2.1 Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

4.2.2 Medical Industry

Taken as a Supplement for Calcium or Magnesium

4.3 Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts, Monuments, Sculpture, Small Figurines

4.5 Other Uses

4.5.1 Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

5 Types

5.1 Types

Not Available

Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite

5.2 Features

Host Rock for Lead

Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny

5.3 Archaeological Significance

5.3.1 Monuments

Used

5.3.2 Famous Monuments

Data Not Available

5.3.3 Sculpture

Used

5.3.4 Famous Sculptures

Data Not Available

5.3.5 Pictographs

Used

5.3.6 Petroglyphs

Used

5.3.7 Figurines

Used

5.4 Fossils

Absent

6 Formation

6.1 Formation

Foidolites 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.

Minette formation takes place deep beneath the Earth’s surface at around 150 to 450 kms, and are erupted rapidly and violently.

6.2 Composition

6.2.1 Mineral Content

Amphibole, Biotite, Feldspar, Olivine, Plagioclase, Pyroxene

Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene

6.2.2 Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO

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

6.3 Transformation

6.3.1 Metamorphism

✔ ✘

6.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

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

6.3.3 Weathering

✔ ✘

6.3.4 Types of Weathering

Not Applicable

Biological Weathering, Chemical Weathering

6.3.6 Erosion

✔ ✘

6.3.8 Types of Erosion

Not Applicable

Chemical Erosion, Coastal Erosion, Sea Erosion, Wind Erosion

7 Properties

7.1 Physical Properties

7.1.1 Hardness

1.55-6

1 7

8.1.2 Grain Size

Medium to Fine Coarse Grained

Fine to Coarse Grained

8.1.3 Fracture

Conchoidal

8.1.4 Streak

White

8.1.5 Porosity

Very Less Porous

8.1.6 Luster

Subvitreous to Dull

8.1.7 Compressive Strength

NANA

0.15 450

8.1.14 Cleavage

Perfect

Conchoidal

8.1.15 Toughness

Not Available

8.1.16 Specific Gravity

2.862.86-2.87

0 8.4

8.1.20 Transparency

Translucent

Translucent to Opaque

8.1.21 Density

Not Available2.95-2.96 g/cm³

0 1400

8.2 Thermal Properties

8.2.1 Specific Heat Capacity

NANA

0.14 3.2

8.3.2 Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Impact Resistant

9 Reserves

9.1 Deposits in Eastern Continents

9.1.1 Asia

Russia

9.1.2 Africa

South Africa, Western Africa

Angola, Botswana, Cameroon, Ethiopia, South Africa

9.1.3 Europe

Not Yet Found

England, Hungary, Iceland, United Kingdom

9.1.4 Others

Not Yet Found

Antarctica, Greenland

9.2 Deposits in Western Continents

9.2.1 North America

Canada, USA

Canada, Mexico, USA

9.2.2 South America

Not Yet Found

Argentina, Colombia, Ecuador

9.3 Deposits in Oceania Continent

9.3.1 Australia

Central Australia, Western Australia

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

All about Foidolite and Minette Properties

Know all about Foidolite and Minette properties here. All properties of rocks are important as they define the type of rock and its application. Foidolite and Minette belong to Igneous Rocks.Texture of Foidolite is Earthy whereas that of Minette is Porphyritic. Foidolite appears Dull and Minette appears Dull, Banded and Foilated. The luster of Foidolite and Minette is subvitreous to dull. Foidolite is available in black, brown, colourless, green, grey, pink, white colors whereas Minette is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Foidolite are cemetery markers, commemorative tablets, creating artwork and that of Minette are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).