| 1936 erwirbt die Firma "Saline Ludwigshalle AG", Bad Wimpfen, die Grube Kallmünzer. Daraufhin wurde der Firmenname ( Besitzer) in "Flußspatwerk Schwarzenfeld GmbH, vorm. Anton Kallmünzer" geändert. Die Flußspatgrube wird von nun an Grube Cäcilia, teils auch Grube Cäcilie, genannt. Anton Kallmünzer b ... more1936 erwirbt die Firma "Saline Ludwigshalle AG", Bad Wimpfen, die Grube Kallmünzer. Daraufhin wurde der Firmenname ( Besitzer) in "Flußspatwerk Schwarzenfeld GmbH, vorm. Anton Kallmünzer" geändert. Die Flußspatgrube wird von nun an Grube Cäcilia, teils auch Grube Cäcilie, genannt. Anton Kallmünzer bleibt Teilhaber und Geschäftsführer. Schacht Cäcilia II ist mit 86 m Teufe Hauptförderschacht. Der Schacht Marie, ehemals zu Grube Freiung II zugehörig und der Reichhart-Schacht, ehemals Grube Freiung I, werden als Wetterschächte genutzt. Im gleichen Jahr erwirbt die Firma auch das Ausbeuterecht ... Ein Beitrag von Michael Kommer |
| Olivine is not a separate mineral, but a member belonging to the forsterite-fayalite mixing series. Olivine belongs to the olivin-groupe whose end-members are calcio-olivine and tephroite. Forsterite is a magnesium silicate; fayalite an iron silicate. If commonly is spoken of olivine, it is usually ... moreOlivine is not a separate mineral, but a member belonging to the forsterite-fayalite mixing series. Olivine belongs to the olivin-groupe whose end-members are calcio-olivine and tephroite. Forsterite is a magnesium silicate; fayalite an iron silicate. If commonly is spoken of olivine, it is usually a more or less iron-rich forsterite. The color of olivine is generally yellowish green, olive green to black. You will find much more interesting details in our portrait about this common mineral series. Written and investigated by Peter Seroka. (Article in german) |
| Emerged as a product of erosion from water, frost and wind which has shaped the spectacular pillars (hoodoos) the Bryce Canyon National Park is one of the most spectacular natural amphitheater. The eroded Claron limestone in which also fossils are found, leaves the impression of a subtle army from l ... moreEmerged as a product of erosion from water, frost and wind which has shaped the spectacular pillars (hoodoos) the Bryce Canyon National Park is one of the most spectacular natural amphitheater. The eroded Claron limestone in which also fossils are found, leaves the impression of a subtle army from limestone warriors. Named after the Mormon Pioneer Ebenezer Bryce, the natural spectacle was 1928 declared as national park. |