This find was made a couple of years back in China, and is absolutely unique: glittery, golden pyrite microcrystals on the edges of huge (to 4.8 cm across on this piece) flattened rhombs of pastel-pink manganoan calcite. Some of the specimens had very sparse coverage of pyrite, just a salting, but here, it is richly carpeting the crystal edges and on some of the crystal face. Striking and very pretty material.