 | Museum of Practical Geology (Great Britain), Robert Hunt, Frederick William Rudler - 1867 - 188 Seiten
...is sufficiently hard to receive an excellent polish. It was long thought that blocks of serpentine of a large size could not be obtained ; quarries have,...around the British coast more beautiful and grand than Keynance Cove near the Lizard, where the serpentine rock in all its varied dyes, is polished by the... | |
 | Horace Bolingbroke Woodward - 1876 - 516 Seiten
...brittle, and therefore easily worked, while it is sufficiently hard to receive an excellent polish. There are few spots around the British coast more beautiful and grand than Kynance Cove near the Lizard, where the serpentine rock, in all its varied hues, is polished by the beat of the... | |
 | Museum of Practical Geology (Great Britain), Robert Hunt, Frederick William Rudler - 1877 - 200 Seiten
...receive an excellent polish. It was long thought that blocks of serpentine of a large size could not bo obtained ; quarries have, however, been opened, and...around the British coast more beautiful and grand than Keynance Cove near the Lizard, where the serpentine rock in all its varied dyes, is polished by the... | |
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... in the manufacture of earthenware, but it is no longer worked. For purposes of ornament this elegant stone is well adapted, being moderately soft, but not brittle, and therefore easily worked, while it is sufficiently hard to receive an excellent... 