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Definition

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

History

Origin
-

Discoverer
Unknown

Etymology
From French mine ore, mine + ette

Class
Igneous Rocks

Sub-Class
Durable Rock, Medium Hardness Rock

Family

Group
Plutonic

Other Categories
Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Texture

Texture
Porphyritic

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

Maintenance
Less

Durability
Durable

Water Resistant
Yes

Scratch Resistant
Yes

Stain Resistant
Yes

Wind Resistant
No

Acid Resistant
No

Appearance
Dull, Banded and Foilated

Uses

Architecture

Interior Uses
Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses
Curbing

Industry

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

Medical Industry
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

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

Types

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

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

Archaeological Significance

Monuments
-

Famous Monuments
-

Sculpture
-

Famous Sculptures
-

Pictographs
-

Petroglyphs
-

Figurines
-

Fossils
Absent

Formation

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

Composition

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

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

Transformation

Metamorphism
Yes

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

Weathering
Yes

Types of Weathering
Biological Weathering, Chemical Weathering

Erosion
Yes

Types of Erosion
Chemical Erosion, Coastal Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness
5-6

Grain Size
Fine to Coarse Grained

Fracture
Conchoidal

Streak
White

Porosity
Very Less Porous

Luster
Subvitreous to Dull

Compressive Strength
150.00 N/mm2 22

Cleavage
Conchoidal

Toughness
-

Specific Gravity
2.86-2.87

Transparency
Translucent to Opaque

Density
2.95-2.96 g/cm3

Thermal Properties

Specific Heat Capacity
0.79 kJ/Kg K 17

Resistance
Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia
Russia

Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa

Europe
England, Hungary, Iceland, United Kingdom

Others
Antarctica, Greenland

Deposits in Western Continents

North America
Canada, Mexico, USA

South America
Argentina, Colombia, Ecuador

Deposits in Oceania Continent

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

Summary >>
<< Reserves

Igneous Rocks

Learn more about Properties of Minette

What is Minette? In this section, we will learn more about properties of Minette i.e. physical and thermal properties. Physical properties of Minette include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Minette is 150.00 N/mm2. Streak of Minette is white while its cleavage is conchoidal. Luster of Minette is subvitreous to dull and its fracture is conchoidal. Minette is translucent to opaque in nature. Know all about Minette, What is Minette, its composition, features, facts and reserves in next sections.

Know about Composition of Minette

What is Minette composed of? Get to know about composition of Minette here. Minette definition gives information about the Formation of Minette and its composition.The composition of Minette can be further divided into mineral and compound content. The mineral content of Minette rock includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene and The compound content of Minette rock includes Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide. Almost all rocks undergo transformation process. Know all about Minette rock in next section.

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