K5Fe48(Si63Al9)O168(OH)216·12H2O |
 |
STILPNOMELANE in matrix QUARTZ Blanchard Hill |
STILPNOMELANE in matrix QUARTZ and green chert Blanchard Hill |
K5Fe48(Si63Al9)O168(OH)216·12H2O |
|
|
STILPNOMELANE in matrix QUARTZ Blanchard Hill |
STILPNOMELANE in matrix QUARTZ and green chert Blanchard Hill |