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MINERALOGICAL-REMARKS. 301 of a fibrous texture; but this, in. other parts, is quite evident: it is fcattered with parallelopipeds of adularia, and, if carefully examined, a-feyv, particles. of black mica may be feen; . Another kind was much mofe like jpuinice :: ‘the contorted fibrous texture in this'is here and there very evident ; it is likewife feattered with a few particles: of adularia.and black mica with grains of:pellucid guartz? In one of my excurfions in fearch: of the Telkobanya yellow Opal; I. met with a vein of jafper, but a jafper approaching to the pitch-ftone ;.in the middle of a fragment of this, there was a fmall: piece of the Milt-Opal which had fome degree of Are. This fituation agrees with the account of Mr. Fichtel, relative to the. fituation. of the Telkobanya Opal. ‘In the road to Cafchau there are great blocks of Petrofilex; or fomething between Petrofilex and.Chalcedony, . containing great abundance of vegetable petrifactions. I knocked out: of one of thefe blocks a piece of petrified wood ‘near half a foot long,, and an inch in diameter; its fibrous texture was very evident, I only ftaid.a day at Telkobanya, and the evening after my arrival I left it for Cafchau, which is two ftages diftant; but as no horfes were to be procured, I was obliged to take up with oxen. I think there is not a greater fécatura à poor mortal meets with in this vale of tears, than that of being obliged to travel low when he wifhes to travel falt; and befides the flownefs of the progreffion of thefe animals, they indicated by their aétions, that they had views quite 49
