This mixed feldspar mine (potassium and sodium), offered for twenty years rent, is located in Argentina Republic, province of Córdoba,Río Cuarto department, Achiras town.

The field is 167.778 miles South West from Córdoba city, 403.91 miles from Buenos Aires port (Atlantic Ocean) and the same distance from Chilean ports(Pacific Ocean).

Río Cuarto city is located 40.391 miles East from Achiras and has got a railway to Buenos Aires. The Achiras-Río Cuarto branch line isn't working, but the railroads are in good condition.

Outcropping reserves: The field covers a surface of 61.775 to 74.13 acres. For the reserves calculation only Cerro Colorado was studied; it occupies 14.826 acres, its outcropping reserves are 1.377.875 tn. .

Geologic description: The body has a probable metasomatic origin (episyenite); for other authors it's a syenite. It outcrops into Los Nogales granitic plutonium. Neither quartz nor mica were observed on its surface; iron was (ilmenite-magnetite). Because of its K2O and Na2O content, it could be considered a mixed feldspar.