Description
Here we have a superb, v-shaped cluster of well formed and partly doubly terminated manganese bearing Calcite crystals from the well known Swiss locale Umlaufstollen of Göschener Alp in Uri Canton. The Calcite here is very sharp edged and lustrous with beautiful, so-called nail-head terminations. Almost perfect with only minor contact at the backside of one crystal. Oldtimed stuff, hard to come by nowadays.