Dr. Kubassek János szerk.: A Kárpát-medence természeti értékei (Érd, 2004)
Dr. Miklós Kázmér: Dr. Edward Browne's visit in the mining towns of Lower Hungary in 1669
„Pure CAPILLARY COPPER from the Mine at Herngrunt. Given by Dr. Ed. Brown. 'Tis very ponderous, the several Styriae or Capillary parts but short, of a redish Golden colour, growing together almost like those of the little Stone-Moss" (Grew, 1681, p. 326). „Another Piece of the same Species" (GREW, 1681, p. 322). „Pure GRANULATED COPPER, from the Mine. Of a redish colour, mixed with a sad purple, and some green. Grows to a Stone, outwardl of a Liver-colour, within whitish; not very hard. This sort of Native Copper, by Chiocco, is call'd Aeris Flow verus" (GREW, 1681, p. 322). „An Iron-Chain and Heart, at least, cover'd with a Crustofpure GRANULATED COPPER; by lying in one of the two Springs in the Copper-Mine call'd the Ziment in Hungary. Given with the next by Dr. Edward Brown" (GREW, 1681, p. 322). „This was given me by Dr. Ed. Brown; and is what he in his Travels, pag. — [109J calls iron turn'd into Copper; from a Spring near the Copper-Mines of HernGrunt in Hungary. The Brief of this Transaction is, these Springs, Rivulets, &c. that arise out of the Copper-Mines here, are impregnated with much Vitriol; in which there is also Copper dissolud. Indeed the Vitriol constitutes a kind of Menstruum. Upon the putting Iron in, that Menstruum preys upon it, and assumes the ferreous Parts into itself. At the same time it precipitates an equal proportion of the cupreous Parts; a thing common and well understood by Refiners, and all who have been conversant with Solutions in Aqua Fortis, and other like Menstrua" (WOODWARD, 1729, p. 50). „Pure Native COPPER, both CAPILLARY, and GRANULATED, in one piece. The Capillary part, above two inches broad; and surrounded, like a Wood, by the other. Aldrovandus 2 ^ hath a sort that is pointed, or at least angular; which Ambrosinus 28 callsAes nativum figuraepangoniae" (GREW, 1681, p. 322). „ YELLOW COPPER-ORE, from the Mine at Herngrunt. Given by Dr. E. Broivn. 'Tis of a redish yellow, mixed with some sparks of the colour of Gold, both without and within, it yields ordinarily l/5th part Copper; sometimes 3/5ths or above half. See his Travails" (GREW, 1681, p. 327). „Another piece of YELLOW COPPER ORE. Given by Mr. Oldenburg. 29 'Tis immersed in small sparks in brown Stone; to which adhere some very green Flakes of the nature of Turcois " (GREW, 1681, p. 327).
