Description
An excellent and superbly developed thumber of probably most desired and classic species of well known Kollergraben of Lercheltini Area in Binntal, Valais Canton, Switzerland. The doubly terminated crystal here has wonderful amber brown colour, is sharp edged and dipyramidal formed. No significant imperfection on this old time piece so far I can see. This stuff is very hard to come by nowadays and consquently desired material.