Capillitas Mine, Andalgalá Department, Catamarca, Argentina
|Latitude & Longitude (WGS84):||27° 20' 44'' South , 66° 22' 51'' West|
|Latitude & Longitude (decimal):||-27.34556,-66.38083|
|Köppen climate type:||Cwb : Subtropical highland climate or temperate oceanic climate with dry winters|
|Other/historical region names associated with this locality:||Capillitas Mining District|
This mine holds the famous occurrence of the banded layers, concretions, and stalactites of "Inca Rose" rhodochrosite, first described in the literature in 1873, and for which it is sporadically being mined for specimens and lapidary material.
But at various times in the past, the deposit was worked for its metals content, not the more famous rhodochrosite. Indigenous people probably mined the placers for gold in pre-Colombian times. In the 17th and 18th centuries, the area was mined by the Jesuits. From the 1850's onwards mining was carried out by Argentine and English companies, and later by the Argentine military.
Epithermal mineralization related to Miocene-Pliocene volcanism hosted in Paleozoic granite. Principal veins are the Capillitas, Carmelitas, La Rosario, Ortiz, Restauradora, and 25 de Mayo veins. This is the most species-rich locality in Argentina. The mineral deposition has been divided into six stages.
Mineral ListMineral list contains entries from the region specified including sub-localities
119 valid minerals. 5 (TL) - type locality of valid minerals.
GeochronologyMineralization age: Miocene : 9 Ma to 7 Ma
Important note: This table is based only on rock and mineral ages recorded below and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
|Geologic Time||Rocks, Minerals and Events|
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
443.8 - 541 Ma
|Cambrian-Ordovician plutonic rocks|
Age: Paleozoic (443.8 - 541 Ma)
Comments: Deep-seated to high-level intrusions are included. Many charnockites, anorthosites, and large ophiolites, classified as plutons, are distinguished in the database using the SIGNIF item. Ophiolites were classified as plutons, even where remnants may be extrusive and/or sedimentary.
Lithology: Plutonic rocks
Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.