MC27AL3: Translucent cubic Fluorite crystals, bluish in color with very intense and uniform violet tints, implanted on a Quartz crystal partially covered by a very dark coating of Chlorite and groups of light cream colored lenticular Siderite crystals.
Minas da Panasqueira, levels 0-1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region  Portugal (10/2019)

Specimen size: 6 × 4 × 3.7 cm = 2.36” × 1.57” × 1.46”

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