The first formation observed with the acidic gold chloride reagent are light, feathery orange crosses. The crosses form so quickly that the drop becomes orange as soon as the reagent is mixed in. The drop slowly clears up as colorless thick irregular plates form at the expense of a few orange crosses. The orange crosses appear blue to yellow under crossed polars while the stacks of plates are faint white.
Printing is not supported at the primary Gallery Thumbnail page. Please first navigate to a specific Image before printing.