 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|||||||||||||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
|||||||||||||
 |
 |
 |
 |
 |
 |
|
||||||||||||||||
 |
 |
 |
 |
|
||||||||||||||||||
 |
 |
 |
 |
|
||||||||||||||||||
 |
 |
 |
|
|||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|||||||||||||
|
|
|
|
|
|
|
||||||||||||||||
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|||||||||||||||||||
Franklin and Sterling Hill provide an ideal environment for the formation of the manganese- humites, and all the known species occur here. Unlike the humites, which form mostly in the marble, the manganese-humites occur in the orebodies, together with some manganoan members of the humites.
 |
|
|
 |
|
|
| Table 1. Chemical analyses of minerals in the olivine-, humite-, and manganese-humite groups. | ||
|
Franklin is also host to the two anomalous, yet related, species, jerrygibbsite and leucophoenicite; ribbeite, however, has not yet been found locally. The manganese-humite minerals are moderately common in these deposits, occurring both within the primary ore and in secondary vein assemblages. Additionally, the Franklin and Sterling Hill assemblages offer a unique opportunity to study the behavior of zinc in these minerals. Compositional trends in these series were noted by Dunn (1985a). The known manganese-humites and leucophoenicites are listed above.
|
|
|||
|
|
||||
|
||||
| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
|
|||
|
|
|
|||
|
Link
to homepage
|
||||
|
This
page created: January 11, 2001 |
||||
|
|
|
|||
