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Veta Negra Mine, Pampa Larga district, Tierra Amarilla, Copiapó Province, Atacama Region, Chile

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 27° 36' 0'' South , 70° 10' 59'' West (est.)
Margin of Error:~0km
Köppen climate type:BWk : Cold desert climate


Note on the mineral list: the villyaellenite originally reported from here turned out to be miguelromeroite, the Mn analogue of sainfeldite.
Recent analysis led to the following results:
Actinolite: Conf. meth.: EDX (typical composition, most Fe is assumed to be divalent, because of green color of the crystals), Ref.: by Joy Desor and Gerhard Möhn

Atacamite: Conf. meth.: EdX and visually (crystal shape), Ref.: by Joy Desor and Gerhard Möhn
Babanekite: Conf. meth.: EDX, Ref.: by Günter Blaß, Cu-dominant solid solution with Manganohörnesite, Erythrite and Annabergite
Calcite: Conf. meth.: visually and chemical tests
Chalcopyrite: Conf. meth.: visually
Chrysocolla: Conf. meth.: visually
Cinnabar: Conf. meth.: EDX, Ref.: by Günter Blaß
Connellite: Conf. meth.: chemical tests,Ref.: by Gerhard Möhn, chemical test:positive: Cu2+, Cl-, SO42-negative: CO32-
Copper: Conf. meth.: visually, tenacity.malleable
Covellite: Conf. meth.: visually and immersion in water->color turns to violet
Cryptomelane: Conf. meth.: chemical tests,Ref.: by Gerhard Möhn, massive hard Mn-ore chemical test:positive:K+,Mn-negative: Ba2+, Pb2+
Diopside: Conf. meth.: EDX, cleavage, hardness and crystal shape, Ref.: by Joy Desor and gerhard Möhn
with Fluorapatite and Actinolite in a crack of the rock
Ferrisymplesite: Conf. meth.: XRD (by Joachim Lorenz), Chemical tests (by Gerhard Möhn) show: all Fe is trivalent, trace amounts of Co2+,Ni2+
Fluorapatite: Conf. meth.: visually, Hardness:5, Chemical test: F- positive
Galena: Conf. meth.: visually
Gypsum: Conf. meth.: visually
Hematite: Conf. meth.: visually, Streak:brown-red
Ilmenite: Conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn ingrown in rock
Malachite: Conf. meth.: visually and chemical tests
Muscovite: Conf. meth.: visually, rock forming mineral
Opal: Conf. meth.: visually, glassy crust, hardness:6, loses water when heated
Paratacamite: conf. meth.: EDX, Ref.: by Joy Desor and Gerhard Möhn
Pyrite: Conf. meth.: visually
Pyrolusite: Conf. meth.: XRD, Ref.: by Joachim Lorenz
Pyrrhotite: as bronze brown, metallic grains with Pyrite and Chalcopyrite, ferromagnetic
Quartz: Conf. meth.: visually
Romanèchite: Conf. meth.:XRD (by Joachim Lorenz), chemical tests (by Gerhard Möhn)
Spherocobaltite: Conf. meth.: chemical and physical tests, Ref.: by Gerhard Möhn, weakly ferromagnetic
Talmessite: Conf. meth.: XRD (by Joachim Lorenz) and chemical tests (by Gerhard Möhn)
Titanite: Conf. meth.: visually, ingrown crystals in rock
Wendwilsonite: Conf. meth.: XRD (by Joachim Lorenz), EDX (by Nikita V. Chukanov)


Mineral List


73 valid minerals. 1 erroneous literature entry.

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