† hornslaten.
/ˈhɔːnsleɪt/ Mineralogy. Obsolete.
A schistous form of hornstone.
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the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > schist > varieties of
hammochrysos1706
hornslate1791
hornblende slate1794
horn porphyry1794
horn-schist1799
mica-slate1809
green schist1817
hornblende schist1821
kinzigite1878
phyllite1878
spilosite1882
mylonite1885
1791 T. Beddoes in Philos. Trans. (Royal Soc.) 81 60 The Scheibenberg, near Königsbruck, consists of a stone which Mr. Leske knows not whether to call hornslate, or corneous porphyry.
1794 R. Kirwan Elements Mineral. (ed. 2) I. 307 Horn~slate..Schistose Porphyry of Werner.
1799 W. Tooke View Russ. Empire I. 116 Pebbles of hornslate.
This entry has not yet been fully updated (first published 1899; most recently modified version published online December 2018).
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n.1791