Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 91. (Budapest 1999)

Kázmér, M. ; Papp, G.: Minerals from the Carpathians in an eighteenth-century British collection

p. 43. V.35. A Marcasite, yellow, with a glossy Grey, and Pnrple in some Parts, holding Copper. From the Mines of Newsohl <Neusohl> in Hungary. {E-14-5} p. 44. V.48. A Marcasite, yellow, with a glossy Grey, and Purple in some Parts, holding Copper. From the Mines of Newsohl <NeusohI> in Hungary. {E-l

4-8} Although v.35. and v.48. has identical description - in the manuscript catalogue, too - the two specimens are not identical, neither they arc derived from the same rock. "Marcasite (..) holding Copper" is obviously chalcopyrite. p. 47. APPENDIX Mantissa IV. Fossilium quorundam Praeparationes. Miscellany Instances of Metallick and Mineral Bodies, that have been wrought; and that give some light to Natural History p. 50. x

0u.22. This was given me by Dr. Ed. Brown; and is what he in his Travels, pag. — calls iron turn'd into Copper, from a Spring near the Copper-Mines of Hern-Grunt <Herrengrund> 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 dissolv'd. 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 <here: sulphuric acid>, and other like Menstrua <solvents>. {E-l

6-30} Dashed in the manuscript catalogue. It is p. 109 in BROWN (1673). The specimen is a copper crust precipitated on iron. Sec under 5.1 pp. 50-51. X

O).23. Copper, very fine; and concreted in a very elegant and observable manner. 'Tis in form of the Letter B; and was form'd, in the manner recited in the precedent, upon the putting a Piece of Iron of the very same Figure and Dimensions into a Vitriolick Spring in Hungary. M. Ol. du Mont. {E-l

6-31} At Herrcngrund different souvenirs were made using vitriolic water. BROWN (1673) received "a piece of Copper of the Figure of a Heart which had been layed in it [vitriolic water] eleven or twelve days before; having the same Figure, but as perfectly Iron then, as it is at this day Copper."