Stöfflerite
Stöfflerite is a mineral with the chemical formula calcium aluminum silicate, CaAl2Si2O8. It crystallizes in the tetragonal crystal system and belongs to the Strunz classification 9.FA.70. This mineral is notable for its unique crystal structure, which is defined by the space group I4/m. Stöfflerite typically exhibits a vitreous luster and may display a range of colors depending on impurities. Its hardness and density are not explicitly stated, but it is classified as a silicate mineral, indicating its formation through silicate-based geological processes.
Composition
- OOxygen46.0%
- SiSilicon20.2%
- AlAluminium19.4%
- CaCalcium14.4%
Overview
Stöfflerite is a mineral with the chemical formula calcium aluminum silicate, CaAl2Si2O8. It crystallizes in the tetragonal crystal system and belongs to the Strunz classification 9.FA.70. This mineral is notable for its unique crystal structure, which is defined by the space group I4/m. Stöfflerite typically exhibits a vitreous luster and may display a range of colors depending on impurities. Its hardness and density are not explicitly stated, but it is classified as a silicate mineral, indicating its formation through silicate-based geological processes.
Etymology
Stöfflerite is named after Dieter Stöffler, in recognition of his contributions to the field of mineralogy. The mineral was officially approved by the International Mineralogical Association (IMA).
How to recognize it
Stöfflerite can be identified through its tetragonal crystal system and its chemical composition of calcium aluminum silicate. Its specific physical properties such as hardness and density are not provided, but its luster is described as vitreous. The mineral may be distinguished by its color variations and crystal habit, though no specific hardness test or streak is given. Due to its rarity, it is not commonly confused with other minerals.
Trivia
Stöfflerite is named in honor of Dieter Stöffler, a notable figure in mineralogy. The mineral's chemical formula, CaAl2Si2O8, reflects a unique combination of calcium, aluminum, and silicate ions. Its tetragonal crystal system and space group I4/m are notable structural features that contribute to its classification and scientific interest.