Here is a rarely seen piece from the Kuju Sulfur Mine (Kuju Volcano, Kuju Mts., Kyushu, Japan – not listed on Mindat), featuring pastel yellow, stalactitic native sulphur free of matrix. The piece looks like it formed in a fumarole, but it truly looks like the yellow window and door insulating foam sealant that you'll find in the hardware store. ...
© Rob Lavinsky & MineralAuctions.com