 | silicosis and pulmonary fibrosis. The term quartzite is derived from German: Quarzit. Swan Peak Quartzite (Ordovician) exposed just north of Tony Grove Lake... 21 KB (2,214 words) - 18:53, 1 April 2024 |
 | 2014-10-28. Thomas Schraner (2013-11-19). "High Noon für den letzten Valser Quarzit auf dem Sechseläutenplatz" (in German). Limmattaler Zeitung. Retrieved... 22 KB (2,064 words) - 22:28, 21 January 2024 |