Chemical News and Journal of Physical Science, Tom 120Chemical news office., 1920 |
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Strona 5
... mineral recognised to be psilomelane , the common manganese mineral of the Franciscan formation of the Coast Ranges of California . In the autumn of 1918 , when restricted shipping facilities created an urgent demand for domestic ...
... mineral recognised to be psilomelane , the common manganese mineral of the Franciscan formation of the Coast Ranges of California . In the autumn of 1918 , when restricted shipping facilities created an urgent demand for domestic ...
Strona 6
... mineral , heretofore known only at the original locality ( Langban , Sweden ) , was found along seams with cleavable barite as brownish - yellow dis- torted tabular crystals . It was identified by the index of refraction " = 1.7230003 ...
... mineral , heretofore known only at the original locality ( Langban , Sweden ) , was found along seams with cleavable barite as brownish - yellow dis- torted tabular crystals . It was identified by the index of refraction " = 1.7230003 ...
Strona 7
... mineral , and the psilomelane doubtless was formed by meteoric waters at a very late period . The pyrochroite is intermediate in age between the rhodo- chrosite and the psilomelane . Was it formed by meteoric waters or by hydrothermal ...
... mineral , and the psilomelane doubtless was formed by meteoric waters at a very late period . The pyrochroite is intermediate in age between the rhodo- chrosite and the psilomelane . Was it formed by meteoric waters or by hydrothermal ...
Strona 10
... mineral oil , paraffin , or any compound , product , or residue of any of these substances , and ( b ) Chrome ulceration due to chromic acid or bichromate of potassium , sodium , or ammonium , or any pre- paration of these substances ...
... mineral oil , paraffin , or any compound , product , or residue of any of these substances , and ( b ) Chrome ulceration due to chromic acid or bichromate of potassium , sodium , or ammonium , or any pre- paration of these substances ...
Strona 20
... mineral were treated , from which were pro- duced 984,486 pounds of mercury . In the Spirek system 688,795 pounds of mercury were produced from 5616 tons of ore . Output and Quantities Exported . - The ore on hand at the beginning of ...
... mineral were treated , from which were pro- duced 984,486 pounds of mercury . In the Spirek system 688,795 pounds of mercury were produced from 5616 tons of ore . Output and Quantities Exported . - The ore on hand at the beginning of ...
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