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- Åkermanite 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.".
- Åkermanite thumbnail Åkermanite,_Calcite,_Hillebrandite,_Tilleyite_-_Mineralogisches_Museum_Bonn1.jpg?width=300.
- Åkermanite wikiPageID "13998792".
- Åkermanite wikiPageRevisionID "541848300".
- Åkermanite caption "Åkermanite , calcite , foshagite , tilleyite".
- Åkermanite category Silicate_minerals.
- Åkermanite cleavage "Distinct on {001}, poor on {110}".
- Åkermanite color "Colorless, yellowish gray, green, brown".
- Åkermanite dana "55.4".
- Åkermanite diaphaneity "Transparent, translucent".
- Åkermanite formula "Ca2Mg".
- Åkermanite fracture "Irregular/ uneven, conchoidal".
- Åkermanite luster "Vitreous, resinous".
- Åkermanite mohs "5".
- Åkermanite name "Åkermanite".
- Åkermanite streak "White".
- Åkermanite strunz "9".
- Åkermanite system Tetragonal_crystal_system.
- Åkermanite tenacity "Brittle".
- Åkermanite subject Category:Calcium_minerals.
- Åkermanite subject Category:Magnesium_minerals.
- Åkermanite subject Category:Sorosilicates.
- Åkermanite type ChemicalSubstance.
- Åkermanite type Mineral.
- Åkermanite type ChemicalObject.
- Åkermanite type Thing.
- Åkermanite 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.".
- Åkermanite label "Akermanite".
- Åkermanite label "Oakermanita".
- Åkermanite label "Åkermanit".
- Åkermanite label "Åkermanite".
- Åkermanite label "Åkermanite".
- Åkermanite sameAs %C3%85kermanite.
- Åkermanite sameAs Åkermanit.
- Åkermanite sameAs Oakermanita.
- Åkermanite sameAs Akermanite.
- Åkermanite sameAs Åkermanite.
- Åkermanite sameAs Q270942.
- Åkermanite sameAs Q270942.
- Åkermanite wasDerivedFrom Åkermanite?oldid=541848300.
- Åkermanite depiction Åkermanite,_Calcite,_Hillebrandite,_Tilleyite_-_Mineralogisches_Museum_Bonn1.jpg.