Schiefer/Basalt/Blaustein
Logo - Grabmale

Schiefer/Basalt/Blaustein

Schiefer/Basalt/Blaustein

Schiefer

Schiefer ist ein Sammelbegriff für unterschiedliche tektonisch deformierte (gefaltete) und teilweise auch metamorphe Sedimentgesteine. Ihr gemeinsames Merkmal ist die ausgezeichnete Spaltbarkeit entlang engständiger paralleler Flächen, sogenannter Schieferungsflächen.

Basalt

Basalt ist ein basisches Ergussgestein. Es besteht vor allem aus einer Mischung von Eisen- und Magnesium-Silikaten. Basalt ist für gewöhnlich dunkelgrau bis schwarz. Er besteht zum größten Teil aus einer feinkörnigen Grundmasse. Gröbere, mit bloßem Auge zu erkennende Einsprenglinge sind relativ selten, können aber bei einigen Basaltvarietäten häufiger vorkommen.

Blaustein

Blaustein – ein Kalkstein aus dem Mittel- bis Oberdevon und wird zum Teil noch in Belgien abgebaut. Genutzt wurde Blaustein als Werkstein für Fenstereinfassungen, Türschwellen, Treppen, Bodenbeläge, Grabmale sowie Kirchenausstattung wie Altäre und Taufbecken.

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