SV3220NNM: Elegant, with good definition of the main crystal, an undamaged floater.
A great choice by Antonino Bueno to have it in his collection. With the very white Dolomite providing contrast, it reminds us of how splendid a metallic sulfide can be.
We will give Antonino's original label to the buyer.
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Picos de Europa massif, Camaleño, Comarca Liébana, Cantabria  Spain (2007)

Specimen size: 6.7 × 3.3 × 2.9 cm = 2.64” × 1.30” × 1.14”

Main crystal size: 3 × 2.2 cm = 1.18” × 0.87”