NG37AJ8: Sphalerite crystals with complex but unusually well defined forms for the locality. They are bright, very transparent and have a very intense and uniform honey yellow color. On matrix with small white rhombohedral Dolomite crystals. A small jewel from Las Mánforas that comes from the Carlos González Bargueño collection whose label we will send to the buyer.
The sample has been noted and photographed in the article 'The Áliva Mining District' of the ‘Mineralogical Record‘ magazine on page 410 in the volume 52, number 4, July-August 2021
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Picos de Europa massif, Camaleño, Comarca Liébana, Cantabria  Spain (2002)

Specimen size: 3.5 × 3.3 × 1.8 cm = 1.38” × 1.30” × 0.71”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”