Baryte
Group of XX with brown phantoms
7x5.5cm
La Union, Murcia. Spain
Specimen n.323

Baryte
Group of tabular XX, up to 4.5cm long, partially covered by bitumen
12.5x6.5cm
LaUnion, Murcia. Spain
Specimen n.85

Another photo: entire piece

Baryte
Blue XX on limonitic matrix
7x6cm
La Union, Murcia. Spain 
Specimen n.84

Baryte
Baryte XX, up to 1.5cm long, widely scattered on a thin plate of matrix
14.5x9cm
La Union, Murcia. Spain
Specimen n.82

2nd photo

Baryte
Group of pale gray-blue XX
10x6.5cm
La Union, Murcia. Spain
Specimen n.28

Calcite
X of calcite, 3 cm long, semitransparent, on small yellowish fluorite
5x6.5cm
Moscona mine, Villabona, Asturias. Spain
Specimen n.28

Chalcanthite
Spray of thin electric blue XX on limestone
8x6cm
Almeria. Spain
Specimen n.15

Fluorite
Octahedral XX, semitransparent, edges up to 0.9cm. I usually see green octahedron, from this mine
6x6cm
Berta Quarry, Sant Cugat del Valles, El Papiol. Spain
Specimen n.420

Fluorite
Cubic glassy XX, very transparent, on brown micro crystalline quartz  
7.5x8cm
Emilio mine, La Collada, Caravia, Oviedo District, Asturias. Spain
Specimen n. 637

Fluorite
Cubic purple XX, semitransparent and opaque, up to 1.4cm edge; the specimen is partially covered by micro crystalline quartz on one side
7.6x6cm
Berbes mine, Berbes, Asturias. Spain
Specimen n. 20

Fluorite
Cubic X posted on a base of quartz. The X has clear phantoms
8x6cm
Berbes mine, Berbes, Asturias. Spain
Specimen n. 1441

2nd photo

Fluorite
Cubic violet XX on matrix with lamellar light pink XX of Baryte
8.5x7cm
Berbes mine, Berbes, Asturias. Spain
Specimen n.26

2nd photo

Fluorite
Plate of pyrite covered by cubic XX of yellow fluorite, edge up to 1.2 cm
12x10cm
Moscona mine, Villabona, Asturias. Spain
Specimen n.885

Fluorite
Mass of cubic XX, transparent, yellowish, on white-yellow matrix
6.8x7cm
Moscona mine, Villabona, Asturias. Spain
Specimen n.80

Pyrite
Classic cubic X, edge max 2.5 cm, from this famous mine-quarry, exploited to obtain pyrite for collection purposes
8x6cm
Navajun, La Rioja. Spain
Specimen n.1320

Prehenite
Rounded balls made by small green semi-transparent XX
10x7cm
Jaen. Spain
Specimen n.50