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RM2227   Covellite

Corta Atalaya, Minas de Riotinto, Huelva, Andalucía, Spain

On a matrix of sulphides, an iridescent patina of covellite, very brilliant, with deep blue color. From a classic locality for the Spanish mineralogy. This specimen belongs from the Arguijo collection. A rarity.


Size: 5.6 x 4.5 x 2.8 cm.
Found in 1980's.

Col. A. Arguijo (L'Hospitalet de Llobregat, Barcelona).
Classic locality
 

RM2263   Covellite and sulphur

Corta Atalaya, Minas de Riotinto, Huelva, Andalucía, Spain

his good sized specimen from the late 80s belongs from the Arguijo collection, and it was mined in this famous "onubense" mine. It is a sulphide matrix partially covered by brilliant covellite microcrystals, very defined and visible. It has an intense metallic blue iridescence and this very characteristic color. It is accompanied by numerous crystals of native sulphur with curved faces, brilliance, translucent and showing a delicate yellow tone. It was mined from a sporadic finding in the Corta Atalaya, Minas de Riotinto. A unique occasion to obtain one of these "old" specimens.


Size: 7.4 x 5.7 x 5.2 cm.
Found in 1980's.

Col. A. Arguijo (L'Hospitalet de Llobregat, Barcelona).
Classic locality
 

RM2178   Covellite and sulphur

Corta Atalaya, Minas de Riotinto, Huelva, Andalucía, Spain

This good sized specimen from the late 80s belongs from the Arguijo collection, and it was mined in this famous "onubense" mine. It is a sulphide matrix partially covered by brilliant covellite microcrystals, very defined and visible. It has an intense metallic blue iridescence and this very characteristic color. It is accompanied by numerous crystals of native sulphur with curved faces, brilliance, translucent and showing a delicate yellow tone. It was mined from a sporadic finding in the Corta Atalaya, Minas de Riotinto. A unique occasion to obtain one of these "old" specimens.


Size: 8.5 x 7.7 x 4.6 cm.
Found in 1980's.

Col. Arguijo (Barcelona).
Classic locality
 

RM2042   Baryte Pb rich

Cerro Salomón, Minas de Riotinto, Huelva, Andalucía, Spain

Druse of very sharp baryte crystals showing developed and striated prismatic faces, truncated by pinacoids. The crystals are translucent, and color varies between colorless to yellowish. Excellent brilliance. Similar specimens were classified, many years ago, as hokutolite (a lead-rich baryte variety) but further analysis showed that there was only a minor lead content.


Size: 10.2 x 6.5 x 3 cm.
Main crystal: 7 mm.
Found in ±1975

Col. A. Arguijo (L'Hospitalet de L.)
 

RM2041   Lead rich baryte

Cerro Salomón, Minas de Riotinto, Huelva, Andalucía, Spain

Druse of very sharp baryte crystals showing developed and striated prismatic faces, truncated by pinacoids. The crystals are translucent, and color varies between colorless to yellowish. Excellent brilliance. Similar specimens were classified, many years ago, as hokutolite (a lead-rich baryte variety) but further analysis showed that there was only a minor lead content.


Size: 7.5 x 6 x 4.7 cm.
Main crystal: 6-7 mm.
Found in ±1975

Col. A. Arguijo (L'Hospitalet de Llobregat).
Analyzed specimen with report
 

RM1820   Iridescent goethite

Cerro Salomón, Minas de Riotinto, Huelva, Andalucía, Spain

Interesting example of goethite with a richness and very remarkable intense iridescences. From the classic mines of Riotinto; collected in 1985, accompanied by old label.


Size: 9.5 x 7.4 x 3.2 cm.
Found in 1985.

Col. J.M. Manchion (Barcelona). No.162.
 

RM399   Baryte

Cerro Salomón, Minas de Riotinto, Huelva, Andalucía, Spain

Druse of very sharp baryte crystals showing developed and striated prismatic faces, truncated by pinacoids. The crystals are translucent, and color varies between colorless to yellowish. Excellent brilliance. Similar specimens were classified, many years ago, as hokutolite (a lead-rich baryte variety) but further analysis showed that there was only a minor lead content.


Size: 7,0 x 4,5 x 3,2 cm.
Main crystal: 10 x 7 mm.
Found in 06/2010

 
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