This sample is described as spessartine with helvite, quartz, and microcline. It is about 20 cm long and is from Tongbei, Fujian Province, China. The black crystals are taken to be microcline, the orange spessartine, and the tan helvite. The black crystals show the crystal form of microcline, but the black color is unusual. It is confusing, since there is a black sample of spessartine on display as well, and a white sample of microcline with aquamarine.