| 1. | This is the first-known quartzitic caves formed by erosion by rain.
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| 2. | Surface expressions are composed of evaporites rocks, plus igneous rocks and quartzitic sandstone.
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| 3. | The steeply inclined bands of rock near Blankenburg comprise quartzitic sandstones of the Santonian.
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| 4. | The underlying rock is Malmesbury shale with a zone of greywacke and quartzitic limestone.
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| 5. | It is a conglomerate of quartzitic sandstone and ranges in thickness from 50 200 m.
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| 6. | It occurs in quartzitic sandstone in a butte that overlooks in an east direction above the Verlorenvlei River.
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| 7. | In the semi-circular quarry, whitish quartzitic sandstone of the Karlstal beds of the Middle Bunter was extracted.
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| 8. | The dam, which is made of argillaceous and quartzitic shale, is sealed with an internal core of grass sods.
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| 9. | Collmberg consists chiefly of quartzitic Greywacke originating from the Ordovician more than 500 million years ago, also of quartzite and Zau�witz.
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| 10. | A business known far beyond Trechtingshausen s limits is the stoneworks, which quarries quartzitic greywacke from a strip mine and processes it.
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