MF89AL3: Group of sharp transparent crystals between colorless and slightly bluish. These crystals have a clear geometric zoning marked by the presence of small hydrocarbon inclusions. It comes from a historic mine, long abandoned and which was the first find in Spain for crystals with tetrahexahedral growths.
San Lino Quarry, Aurora vein, Caravia mining area, Cerracín, Prado, Caravia, Comarca del Oriente, Principality of Asturias (Asturias)  Spain

Specimen size: 11 × 9.8 × 6.7 cm = 4.33” × 3.86” × 2.64”

Main crystal size: 3.5 × 3.4 cm = 1.38” × 1.34”