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San Francisco Mine (Beatrix Mine), Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 23° South , 69° West (est.)
Margin of Error:~93km
Other regions containing this locality:Atacama Desert, Chile
Köppen climate type:BWk : Cold desert climate

Base metal mine.

Recently more analysis led to following results:

Baryte: Conf. meth.: visually

Bassanite: pseudomorphs after Gypsum, Conf. meth.: XRD, Ref.: by Joachim Lorenz

Beaverite-(Cu): Conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn

Beaverite-(Zn): Conf. meth.: EDX, ref.: by Joy Desor and Gerhard Möhn

Chalcopyrite: Conf. meth.: visually

Changoite: Conf. meth.: EDX (by Joy Desor) , chemical and physical tests (by Gerhard Möhn)->easily soluble in water, Hardness: 2,5, Cleavage: none - Chem. test:
positive: Na+, Zn2+, SO42-, H2O
negative: CO32-

Chlorargyrite: Conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn

Chrysocolla: Conf. meth.: visually, EDX, Ref.: by Joy Desor

Covellite: Conf. meth.: visually, immersion in water->color turns to violet

Epidote: Conf. meth.: visually

Galena: conf. meth.: visually

Gold: Conf. meth.: visually, Tenacity:malleable

Hetaerolite: Conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn, tetragonal dipyramidal crystals (REM photo by Joy Desor)

Iodargyrite: Conf. meth.: visually, strong red color when heated (reversible)

Jarosite: Conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn

Malachite: Conf. meth.: visually, chemical tests, Ref.: by Gerhard Möhn
Chemical test: positive: Cu2+, CO32-

Plumbojarosite: Conf. meth.: chemical tests, Ref.: by Gerhard Möhn

Pyrite: Conf. meth.: visually

Sphalerite: Conf. meth.: visually

Sulfur: Conf. meth.: visually

Mineral List

40 valid minerals. 2 (TL) - type locality of valid minerals.

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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- Neues Jahrbuch Min. Monatsh., 1996, 188-192.

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