Chemical News and Journal of Physical Science, Tom 120Chemical news office., 1920 |
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Strona 5
... barite , and psilomelane . Of these the first four are very rare , except at Langban , Sweden , and gano- phyllite is known only from this locality . Hausmannite is not certainly known in the United States , but has been reported from ...
... barite , and psilomelane . Of these the first four are very rare , except at Langban , Sweden , and gano- phyllite is known only from this locality . Hausmannite is not certainly known in the United States , but has been reported from ...
Strona 6
... barite is about 0:04 . The direction of the cleavage traces in thin sections is parallel to the slower ray which checks the optically negative character determined above . The pyrochroite is also soluble in HCI with the evolu- tion of ...
... barite is about 0:04 . The direction of the cleavage traces in thin sections is parallel to the slower ray which checks the optically negative character determined above . The pyrochroite is also soluble in HCI with the evolu- tion of ...
Strona 109
... BARITE . * By J. P. BONARDI , Assistant Chemist , U.S. Bureau of Mines . DURING the past two years a number of articles concerning the mining and concentration of molybdenum ores have appeared in the technical and mining journals ...
... BARITE . * By J. P. BONARDI , Assistant Chemist , U.S. Bureau of Mines . DURING the past two years a number of articles concerning the mining and concentration of molybdenum ores have appeared in the technical and mining journals ...
Strona 110
... barite . Pure Vanadinite and several of the lead minerals - cerussite , anglesite , galena , pyromorphite , and mimetite - which often occur with wulfenite , are also recovered in the wulfenite concentrates , as they have nearly the ...
... barite . Pure Vanadinite and several of the lead minerals - cerussite , anglesite , galena , pyromorphite , and mimetite - which often occur with wulfenite , are also recovered in the wulfenite concentrates , as they have nearly the ...
Strona 111
... Barite . Wulfenite has heen found occurring with barite , and it is only when associated with gangue of such high specific gravity that the problem of separation and satisfactory recovery of the wulfenite becomes difficult , and the ...
... Barite . Wulfenite has heen found occurring with barite , and it is only when associated with gangue of such high specific gravity that the problem of separation and satisfactory recovery of the wulfenite becomes difficult , and the ...
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