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- %C3%85kermanite abstract "Åkermanite (Ca2Mg[Si2O7]) is a melilite mineral of the sorosilicate group, containing calcium, magnesium, silicon, and oxygen. It is a product of contact metamorphism of siliceous limestones and dolostones, and rocks of sanidinite facies. Sanidinite facies represent the highest conditions of temperature of contact metamorphism and are characterized by the absence of hydrous minerals. It has a density of 2.944 g/cm3. Åkermanite ranks a 5 or 6 on the Mohs scale of mineral hardness, and can be found grey, green, brown, or colorless. It has a white streak and a vitreous or resinous luster. It has a tetragonal crystal system and a good, or distinct, cleavage. It is the end member in a solid solution series beginning with gehlenite (Ca2Al[AlSiO2]).The mineral is named for Anders Richard Åkerman (1837–1922), a Swedish metallurgist. It has been found at Monte Somma and Vesuvius, and Monte Cavalluccio near Rome. It was "grandfathered" in as a species of mineral because it was described prior to 1959, before the founding of the International Mineralogical Association.".
- %C3%85kermanite thumbnail Åkermanite,_Calcite,_Hillebrandite,_Tilleyite_-_Mineralogisches_Museum_Bonn1.jpg?width=300.
- %C3%85kermanite wikiPageID "13998792".
- %C3%85kermanite wikiPageRevisionID "541848300".
- %C3%85kermanite caption "Åkermanite , calcite , foshagite , tilleyite".
- %C3%85kermanite category Silicate_minerals.
- %C3%85kermanite cleavage "Distinct on {001}, poor on {110}".
- %C3%85kermanite color "Colorless, yellowish gray, green, brown".
- %C3%85kermanite dana "55.4".
- %C3%85kermanite diaphaneity "Transparent, translucent".
- %C3%85kermanite formula "Ca2Mg".
- %C3%85kermanite fracture "Irregular/ uneven, conchoidal".
- %C3%85kermanite hasPhotoCollection Åkermanite.
- %C3%85kermanite luster "Vitreous, resinous".
- %C3%85kermanite mohs "5".
- %C3%85kermanite name "Åkermanite".
- %C3%85kermanite streak "White".
- %C3%85kermanite strunz "9".
- %C3%85kermanite system Tetragonal_crystal_system.
- %C3%85kermanite tenacity "Brittle".
- %C3%85kermanite subject Category:Calcium_minerals.
- %C3%85kermanite subject Category:Magnesium_minerals.
- %C3%85kermanite subject Category:Sorosilicates.
- %C3%85kermanite type Abstraction100002137.
- %C3%85kermanite type CalciumMinerals.
- %C3%85kermanite type MagnesiumMinerals.
- %C3%85kermanite type Material114580897.
- %C3%85kermanite type Matter100020827.
- %C3%85kermanite type Mineral114662574.
- %C3%85kermanite type Part113809207.
- %C3%85kermanite type PhysicalEntity100001930.
- %C3%85kermanite type Relation100031921.
- %C3%85kermanite type Substance100019613.
- %C3%85kermanite type ChemicalSubstance.
- %C3%85kermanite type Mineral.
- %C3%85kermanite type ChemicalObject.
- %C3%85kermanite type Thing.
- %C3%85kermanite type Q7946.
- %C3%85kermanite comment "Åkermanite (Ca2Mg[Si2O7]) is a melilite mineral of the sorosilicate group, containing calcium, magnesium, silicon, and oxygen. It is a product of contact metamorphism of siliceous limestones and dolostones, and rocks of sanidinite facies. Sanidinite facies represent the highest conditions of temperature of contact metamorphism and are characterized by the absence of hydrous minerals. It has a density of 2.944 g/cm3.".
- %C3%85kermanite label "Akermanite".
- %C3%85kermanite label "Oakermanita".
- %C3%85kermanite label "Åkermanit".
- %C3%85kermanite label "Åkermanite".
- %C3%85kermanite label "Åkermanite".
- %C3%85kermanite sameAs m.03cqk90.
- %C3%85kermanite sameAs Åkermanite.
- %C3%85kermanite wasDerivedFrom Åkermanite?oldid=541848300.
- %C3%85kermanite depiction Åkermanite,_Calcite,_Hillebrandite,_Tilleyite_-_Mineralogisches_Museum_Bonn1.jpg.
- %C3%85kermanite isPrimaryTopicOf Åkermanite.
