Ijolite and Jadeitite

Ijolite

Jadeitite

Definition

Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite

Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains

History

Origin

Finland, Europe

Unknown

Discoverer

Unknown

Etymology

From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone

From pyroxene mineral jadeite

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Not Applicable

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Earthy, Granular

Earthy

Color

Brown, Buff, Cream, Green, Grey, Pink, White

Black, Brown, Colourless, Green, Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Banded and Foilated

Rough and Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Interior Decoration, Kitchens

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Garden Decoration, Office Buildings, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

As Dimension Stone, Cutting Tool, Knives

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

Commemorative Tablets, Creating Artwork, Jewelry

Types

Not Available

Features

Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Is one of the oldest rock

Host Rock for Lead

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Petroglyphs

Used

Figurines

Used

Fossils

Absent

Formation

Ijolite 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.

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Composition

Mineral Content

Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite

Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Compound Content

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

Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

Yes

Types of Weathering

Biological Weathering, Chemical Weathering

Not Applicable

Erosion

Yes

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-6

3-5

Grain Size

Coarse Grained

Very fine-grained

Fracture

Conchoidal to Uneven

Uneven

Streak

White

White, Greenish White or Grey

Porosity

Less Porous

Luster

Greasy to Dull

Waxy and Dull

Compressive Strength

Not Available

310.00 N/mm²

Cleavage

Poor

Irregular

Toughness

Not Available

Specific Gravity

2.6-2.76

2.79-3

Transparency

Opaque

Density

2.6 g/cm³

2.5-3 g/cm³

Thermal Properties

Specific Heat Capacity

Not Available

0.95 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant, Water Resistant

Reserves

Deposits in Eastern Continents

Asia

Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

India, Saudi Arabia, Singapore, South Korea

Africa

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

Ethiopia, Western Africa

Europe

England, Finland, Germany, Great Britain, Greece, United Kingdom

England, Georgia, Switzerland, United Kingdom

Others

Not Yet Found

Deposits in Western Continents

North America

Canada, USA

Canada

South America

Colombia

Deposits in Oceania Continent

Australia

New Zealand, Queensland, Western Australia

Central Australia, New South Wales, New Zealand, Western Australia

Summary >>

<< Reserves

All about Ijolite and Jadeitite Properties

Know all about Ijolite and Jadeitite properties here. All properties of rocks are important as they define the type of rock and its application. Ijolite belongs to Igneous Rocks while Jadeitite belongs to Metamorphic Rocks.Texture of Ijolite is Earthy, Granular whereas that of Jadeitite is Earthy. Ijolite appears Banded and Foilated and Jadeitite appears Rough and Dull. The luster of Ijolite is greasy to dull while that of Jadeitite is waxy and dull. Ijolite is available in brown, buff, cream, green, grey, pink, white colors whereas Jadeitite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Ijolite are cemetery markers, creating artwork and that of Jadeitite are commemorative tablets, creating artwork, jewelry.