Rock 366 : Day 248 : Bournonite
Day 248 : Bournonite (copper, lead, antimony sulphide) from Neudorf, Harzgerode, Harz, Saxony-Anhalt, Germany. Cotton collection, Keele.
Day 248 : Bournonite (copper, lead, antimony sulphide) from Neudorf, Harzgerode, Harz, Saxony-Anhalt, Germany. Cotton collection, Keele.
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