"' F�l�ppite "'is a rare member of the plagionite group, comprising heteromorphite Pb 7 Sb 8 S 19, plagionite Pb 5 Sb 8 S 17 and semseyite Pb 9 Sb 8 S 21.
2.
"' F�l�ppite "'is a rare member of the plagionite group, comprising heteromorphite Pb 7 Sb 8 S 19, plagionite Pb 5 Sb 8 S 17 and semseyite Pb 9 Sb 8 S 21.
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