. History and uses of limestones and marbles;. of the beds contain Hippurites,Cretaceous, others are almost entirely made up of Alveolites,a radiate found in the Silurian, and Nummulites, — Tertiary. Some of the volcanic tufas of Sicily enclose shells, preserv-ing their natural colors, similar to those found in the neigh-boring seas. The Madrepore Isis is very abundant in theSicilian rocks. Sardinia yields Nummulitic and Hippurite limestones afford-ing marbles, and the islands of Elba, Gorgona, and Giglio, on thecoast of Tuscany, contain serpentines, granites, and gabbro rosso,

---

. History and uses of limestones and marbles;. of the beds contain Hippurites,Cretaceous, others are almost entirely made up of Alveolites,a radiate found in the Silurian, and Nummulites, — Tertiary. Some of the volcanic tufas of Sicily enclose shells, preserv-ing their natural colors, similar to those found in the neigh-boring seas. The Madrepore Isis is very abundant in theSicilian rocks. Sardinia yields Nummulitic and Hippurite limestones afford-ing marbles, and the islands of Elba, Gorgona, and Giglio, on thecoast of Tuscany, contain serpentines, granites, and gabbro rosso, or the serpentine of Elba, is penetratedin various directions, by granite, and is intersected by a net-work of small veins of hydrophane, opal, and other substances,and sometimes veins of copper, the combination forming abeautiful ornamental stone. Some of the limestones of Elbahave been changed into marble. This island was celebrated for its iron mines in the time ofAristotle, B, C. 384, and of Strabo, in the first century before Plate GlALLO AnTICO.

---

Size: 1962px × 1274px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1880, bookpublisherbosto, bookyear1883