Contributed by @plazmatter0430
Three beads of Osmium in the center, a bead of Ruthenium [in the row] above, a bead of Rhenium [in the column] to the left, and a bead of Iridium [in the column] to the right. This mirrors the relative positions of these elements in the periodic table.
Contributed by collector no. 4
Cobalt group: Cobalt chips, 1 gram bead of Rhodium , and 1 gram bead of Iridium in bottles
Contributed by collector no. 3
The Cobalt metal group: Cobalt "flower" piece, 1 gram Rhodium bead, and a 1 gram Iridium bead
1 gram bead of Iridium. Iridium is a prohibitively expensive precious metal. It's chemically resistant to almost everything, including some strong acids. Iridium is the second-densest element, Osmium is more dense by a tiny amount.
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