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
„BLACK COPPER ORE, holding SILVER. There are some Grains of a dark Purple mixed with it. Given by Dr. Brown" (GREW, 1681, p. 327). „BLEW VITRIOL, Native, and cystalliz'd, from the Copper-Mines of Herngrundt in Hungary. Given by Dr. Edward brown, together with the several species following" (GREW, 1681, p. 341). „Native GREEN VITRIOL, mixed with some rays of a plue Blew; from the same place. With its astringent and sweetish Lasts, is joyn'd some Acritude. It grows to its own Ore, of a purplish ash-colour; and of a milder Tast" (GREW, 1681, p. 327). ,A parcel of the same Species, from the Copper-Mine of Herngrundt" (GREW, 1681, p. 327). ' „Native VITRIOL of a pale Purple, and consisting of pointed Crystals. This also hath some Acritude. From the same Mine" (GREW, 1681, p. 327). „Native WHITE VITRIOL. It groivs in glossy Grains like Nitre grosly powder'd; and not without some Acritue. From the same place" (GREW, 1681, p. 327). ,4 sort of Native VERDEGRIESE, from the Copper-Mines of Herngrundt, It consisted of flat and parallel Plates, as in a Slate; of a blewish Green, yet not so blew, as the factitious. 'Tis also of a much milder Tast, It maketh a strong ebullition with Spirit of Nitre. These from the above-mention'd Person" (GREW, 1681, p. 327). „ Of the Nature of Vitriol, see several considerable Observations grounded on Experiment, in the same Transactions" (GREW, 1681, p. 342). „Native Vitriol, saith Ambrosinus (c) given to the quantities of j in any convenient vehicle, is a great Remedy in Germany and Hungary for the Plague. BlewVitriol of excellent use against Venereal Ulcers. Both of this, and the Green, is made the Powder called Sympathetick; the Description whereof may be seen in papinius, and out of him in Wormius^. I doubt not, but the Stiptick Liquors of Mr Lyster and Mr. Deny, are both made of Vitriol" (GREW, 1681, p. 342). „BERG-GRUN; a green Earth, the sediment of a green Watef 1 in the CopperMine at Herngrundt. Given by Dr. Ed. Brown. Tis used by Painters" (GREW, 1681, p. 349).