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RM3509   Cylindrite and Franckeite (var. incaite)
FePb3Sn4Sb2S14
  -  2. Sulfuros y sulfosales

This specimen shows numerous lustrous, parallel-growing cylindrite crystals (Pb₃Sn₄FeSb₂S₁₄). It is accompanied by lighter gray acicular of incaite, a tin-rich Sn(II) franckeite variety (Pb,Ag)₄Sn₄FeSb₂S₁₅, which grow interlaced in the cylindrite. It is from the type locality for both species.

Size: 8.1 x 4.6 x 2.8 cm.
Main crystal: 2.2 cm.
Found in ca. 2005.
Type Locality
80 €