lumachellan.
/l(j)uːməˈkɛlə/ Mineralogy.
A dark-coloured compact limestone containing shells which frequently emit fire-like reflections; fire-marble.
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lumachella1784
fire marble1786
1784 R. Kirwan Elements Mineral. 30 Marbles..which abound in petrifactions are called lumachellis.
1794 R. Kirwan Elements Mineral. (ed. 2) I. 116 The marble called Lumachelli, found at Bleyberg in Carinthia.
1804 Philos. Trans. (Royal Soc.) 94 386 The shells forming the lumachella of Bleyberg, which still possess the lustre and iridescence of their original nacre.
1850 J. D. Dana Syst. Mineral. (ed. 3) 208 Fire marble or lumachelle is a dark brown shell marble.
1869 tr. V. Hugo Man who Laughs in Appletons' Jrnl. 3 Apr. 4/2 The brown corridor in Astracan lumachel.
1894 Geol. Mag. Oct. 463 The shelly limestone below the clay is in part an Oyster lumachelle.
This entry has not yet been fully updated (first published 1903; most recently modified version published online December 2020).
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