The ore deposits of Utah . 51^^ >^^^^ £3 o 2*O. C3 u> o » O>> ?a C8uto o •?J o OQUIRRH RANGE. 377 other places the character of the hmestoiu^ ad-jacent to the ore has been entn-ely cliangod. In the Dry Canyon area the hniostone showsrehxtively sUght alteration. It has undergonesome though usually not pronounced silicifica-tion and contains some silicate minerals. Vcin-Uke masses of tremolite and wollastonite inlimestone found on the dump of the HiddenTreasure mine have apparently resulted fromreplacement along fissures. In the silicifiedrock nearly perfect quartz crystals in carbon
The ore deposits of Utah . 51^^ >^^^^ £3 o 2*O. C3 u> o » O>> ?a C8uto o •?J o OQUIRRH RANGE. 377 other places the character of the hmestoiu^ ad-jacent to the ore has been entn-ely cliangod. In the Dry Canyon area the hniostone showsrehxtively sUght alteration. It has undergonesome though usually not pronounced silicifica-tion and contains some silicate minerals. Vcin-Uke masses of tremolite and wollastonite inlimestone found on the dump of the HiddenTreasure mine have apparently resulted fromreplacement along fissures. In the silicifiedrock nearly perfect quartz crystals in carbonategrains and rather abundant negative rhombo-hedral crystals filled with liquid and gas arepresent, indicating that the carbonate has alsobeen recrystallized. The gas bubbles in thesecavities do not ordinarily occupy more than20 per cent of the space. Near the Cliff minegarnet intergrown with sulphides was collectedat several points. Epidote was noted in a sim-ilar relation, and it is evident that these sili-cates have resulted from the a
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectminesandmineralresou
