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340 CLAY GENUS, - Geognostic and Geogiapbic Situations, , . ■. j > r ' It has been hitherto found only at Rozena in Mo ravia, where it lies in gneifs, but whether it is of co- temporaneous or pofterior formation, I do not know. It appears fometimes to be intermixed with fcales of of mica. • : , id O'’ - Obfervaiions. .. oi'ti 1. It was at fir ft confidered as a fubfpecies of zeo lite, afterwards as a variety of foliated gypfum, and fome continue to arrange it with mica. 2. The fuppofed cryftallized variety is red colony ed fchorlous beryll. : rni ' ?.C oiio^ c ~ ■? * • ‘ . < > ’ \] twen^^'