Oldal 38 [38]
288 MINERALOGICAL E MARKS.
‚the mountains or hills of Pap-Laffo, Cfcherhezy-Farka, and in. part
the Schators, and feveral other hills about Telke-Banya and Tokay ;
in fome of which places it contains the globules ‘of Obfidian: thefe
are likewife found loofe and fcattered about in many places in thefe
Hungarian Campi Phlegrai, as may be learned from Mr, Fichtel’s
1 x de ın 2
work, and Mr. Born’s Catalogue Raifonne.
Mr. Fichtel gave me fome of his black coal-like Zeolite, defcribed
by him, page 652; and Mr. Klaproth was fo kind as to examine it
for me. He found it fwell up under the blow-pipe more, and more
readily than that mentioned page 277: being heated in the fame
manner for two hours, it likewife loft 45 per cent. and placed in a
porcelain furnace in a clay crucible, it melted into a fimilar glafs; but
the colour was of a browner caft, The analyfis in the wet way gave,
Siliceous Earth fée
Argillaceous Hu te s :
Ciliredas é ar 7 weighed in the red hot ftate.
Calx of Iron 2h À ‘
‘ 4
Volatilized in the fire 4
974
Lofs 24
100
Its fpecificgravity is 2,357.
: . Had
36