Definition
Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite
During the impact melted material forming a breccia containing glass and crystal or lithic fragments together form Suevite rock.
Origin
Finland, Europe
Canada, Germany
Discoverer
Unknown
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
No etymologies found
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Earthy, Granular
Earthy
Color
Brown, Buff, Cream, Green, Grey, Pink, White
Black, Brown, Green, Grey, Pink
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Banded and Foilated
Banded
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
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Other Architectural Uses
Curbing
Curbing
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, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture
Commercial Uses
Cemetery Markers, Creating Artwork
As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Source of Magnesia (MgO)
Types
Alkaline rock
Phyllosilicates, Calcite
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
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.
Suevite is a metamorphic rock consisting partly of melted material, typically forming a breccia containing glass and crystal or lithic fragments, formed during an impact event.
Mineral Content
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite
Coesite, Quartz, Stishovite
Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide
CaO, Carbon Dioxide, MgO
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Types of Weathering
Biological Weathering, Chemical Weathering
-
Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
-
Grain Size
Coarse Grained
Coarse Grained
Fracture
Conchoidal to Uneven
Uneven
Streak
White
Light to dark brown
Porosity
Less Porous
Less Porous
Luster
Greasy to Dull
Earthy
Specific Gravity
2.6-2.76
2.86
Transparency
Opaque
Opaque
Density
2.6 g/cm3
2.8-2.9 g/cm3
Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant
Deposits in Eastern Continents
Asia
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
-
Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
-
Europe
England, Finland, Germany, Great Britain, Greece, United Kingdom
England, France, Germany, Great Britain, Netherlands, Sweden, Switzerland, United Kingdom
Deposits in Western Continents
North America
Canada, USA
-
Deposits in Oceania Continent
Australia
New Zealand, Queensland, Western Australia
-
All about Ijolite and Suevite Properties
Know all about Ijolite and Suevite properties here. All properties of rocks are important as they define the type of rock and its application. Ijolite belongs to Igneous Rocks while Suevite belongs to Metamorphic Rocks.Texture of Ijolite is Earthy, Granular whereas that of Suevite is Earthy. Ijolite appears Banded and Foilated and Suevite appears Banded. The luster of Ijolite is greasy to dull while that of Suevite is earthy. Ijolite is available in brown, buff, cream, green, grey, pink, white colors whereas Suevite is available in black, brown, green, grey, pink colors. The commercial uses of Ijolite are cemetery markers, creating artwork and that of Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo).