单词 | hälleflinta |
释义 | ‖ hälleflinta Min.|hɛləˈflɪntə| [Sw. = horn-stone, f. häll flat rock + flinta hornstone, flint.] A name given to a very fine-grained variety of gneiss, generally free from mica, and resembling felsite.
1878Lawrence tr. Cotta's Rocks Class. 213 Felsite has also received the names of petrosilex, and in Scandinavia hälle-flinta. 1879Rutley Study Rocks xii. 214 Those varieties termed hälleflinte and hornstone having a peculiar flinty aspect. 1880Academy 20 Nov. 370 The Chinese Rocks are allied to hälleflinta. Hence hälleflintoid a., of or like hälleflinta.
1888Blake in Q. Jrnl. Geol. Soc. XLIV. 280 Some more hälleflintoid rock (well shown in a quarry by the roadside). |

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