Note 25 — PETER KALM’s TRAVELS. (continued 3)
Johann Reinhold Forster translation
Tophus Tubalcaini, Linn. Syst. Nat. III. p. 187, n. 5. Minera ferri subaquosa nigro cærulescens. Wall. Mineral. p. 263. Germ. Ed. p. 340. n. 3. Iron ockres in the shape of crusts, are sometimes cavernous, as the Brush ore. Forster’s Mineral, p. 48. ↑