DescriptionVoltaite-group minerals.png English: Voltaite-group minerals: (a) photo of black crystals of voltaite in a halotrichite-alunogen matrix, sample...
DescriptionVoltaite-group minerals (d).png English: Voltaite-group minerals: (d) SE image of magnesiovoltaite from Shiveluch, sample Shiv-8030. Date 30...
.png){kind=link}