Manganese (Inventory)/Dendrite
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The '''Dendrite''' field of the [[Manganese (Inventory)|Manganese]] section should be used to record any appearance of manganese dendrites. | The '''Dendrite''' field of the [[Manganese (Inventory)|Manganese]] section should be used to record any appearance of manganese dendrites. | ||
| - | Manganese dendrites appear most often as tiny, scattered, black or dark purple dots on [[Calcite (Inventory)|calcite]] or bedrock, and especially on [[Calcite (Inventory)/Calcite Coating|calcite coatings]] over limestone bedrock. When more developed, they can appear as dark, fractal, fern-like shapes. The size can vary greatly from tiny specks to larger organized areas. Examine exposed bedrock and calcite, especially coatings on bedrock for the tell-tale dark dots which indicate manganese dendrites. | + | Manganese dendrites appear most often as tiny, scattered, black or dark purple dots on [[Calcite (Inventory)|calcite]] or bedrock, and especially on [[Calcite (Inventory)/Calcite Coating|calcite coatings]] over limestone bedrock. When more developed, they can appear as dark, fractal, fern-like shapes. The size can vary greatly from tiny specks to larger organized areas. Examine exposed bedrock and calcite, especially coatings on bedrock for the tell-tale dark dots which indicate manganese dendrites. A close examination is often required. |
Manganese dendrites are actually a form of manganese oxide (and sometimes iron). The fractal shapes may be an indication of biological influence from iron and manganese oxidizing bacteria. | Manganese dendrites are actually a form of manganese oxide (and sometimes iron). The fractal shapes may be an indication of biological influence from iron and manganese oxidizing bacteria. | ||
Revision as of 04:00, 24 January 2012
The Dendrite field of the Manganese section should be used to record any appearance of manganese dendrites.
Manganese dendrites appear most often as tiny, scattered, black or dark purple dots on calcite or bedrock, and especially on calcite coatings over limestone bedrock. When more developed, they can appear as dark, fractal, fern-like shapes. The size can vary greatly from tiny specks to larger organized areas. Examine exposed bedrock and calcite, especially coatings on bedrock for the tell-tale dark dots which indicate manganese dendrites. A close examination is often required.
Manganese dendrites are actually a form of manganese oxide (and sometimes iron). The fractal shapes may be an indication of biological influence from iron and manganese oxidizing bacteria.
