The wulfenite found in this area is similar in properties ( paragenetic sequence, low silver and antimony contents of the galenas and absence of pyromorphite ) to the wulfenites of the Alps and may be similar in origin.
32.
The wulfenite found in this area is similar in properties ( paragenetic sequence, low silver and antimony contents of the galenas and absence of pyromorphite ) to the wulfenites of the Alps and may be similar in origin.
33.
The structure of wulfenite-" I " 4 is also very similar to that of wulfenite-" I " 4 1 / a but has an unequal distribution of tungsten and molybdenum which may explain the observed hemihedrism.
34.
The structure of wulfenite-" I " 4 is also very similar to that of wulfenite-" I " 4 1 / a but has an unequal distribution of tungsten and molybdenum which may explain the observed hemihedrism.
35.
An extensive solid solution exists between the two end members wulfenite and stolzite ( PbWO 4 ), such that tungstenian-wulfenite compositions range from 90 % wulfenite and 10 % stolzite to chillagite ( 64 % wulfenite, 36 % stolzite ) and so on.
36.
An extensive solid solution exists between the two end members wulfenite and stolzite ( PbWO 4 ), such that tungstenian-wulfenite compositions range from 90 % wulfenite and 10 % stolzite to chillagite ( 64 % wulfenite, 36 % stolzite ) and so on.
37.
An extensive solid solution exists between the two end members wulfenite and stolzite ( PbWO 4 ), such that tungstenian-wulfenite compositions range from 90 % wulfenite and 10 % stolzite to chillagite ( 64 % wulfenite, 36 % stolzite ) and so on.
38.
An extensive solid solution exists between the two end members wulfenite and stolzite ( PbWO 4 ), such that tungstenian-wulfenite compositions range from 90 % wulfenite and 10 % stolzite to chillagite ( 64 % wulfenite, 36 % stolzite ) and so on.
39.
Molybdenum can be extracted from wulfenite by crushing the ore to 60-80 mesh, mixing the ore with NaNO 3 or NaOH, heating the mixture to about 700 �C ( decomposing ), leaching with water, filtering, collecting the insoluble residues which may include Union Carbide and Carbon Corp.
40.
It is argued that no miscibility gap exists in the wulfenite-stolzite solid solution at room temperature due to the almost identical size and shape of the MoO 4 2 " and WO 4 2 " ions, however, arguments have been made for the existence of a miscibility gap at higher temperatures.
