Realgar, also known as cockscomb stone, the English name is Realgar; orpiment, the English name is Orpiment or Auripigment, are two minerals that often coexist, algemeen bekend as "mandarin duck minerals." Realgar is a short columnar crystal, a wedge-shaped pointed head, and a rhombus cross-section. It is also common in dense massive and granular aggregates, [...]
