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| | Journal (article/letter/editorial) | |
Origin of the El Dragón Selenium Mineralization,
Quijarro Province, Potosí, Bolivia
Günter Grundmann...April 2017
Abstract: A re-examination of the El Dragón vein-type Se deposit using polarized light microscopy...by volcanic-hydrothermal activities
around the Porco caldera, formation of the mineralization involved...endmember penroseite; vaesite; genetic sequence; El Dragón; Bolivia
1. Introduction
Research on selenium minerals...for the two selenium occurrences in the Andes of Bolivia: Virgen
de Surumi (also known as “Pacajake”) [12 | 👁 Image
| Paar, W. H., Cooper, M. A., Moëlo, Y., Stanley, C. J., Putz, H., Topa, D., Roberts, A. C., Stirling, J., Raith, J. G., Rowe, R. (2012) Eldragónite, Cu6BiSe4(Se2), A new mineral species from the El Dragón Mine, Potosí, Bolivia, and its crystal structure. The Canadian Mineralogist, 50 (2). 281-294 doi:10.3749/canmin.50.2.281 | Journal (article/letter/editorial) | | Cu6BiSe4(Se2), A NEW MINERAL SPECIES
FROM THE EL DRAGÓN MINE, POTOSÍ, BOLIVIA, AND ITS CRYSTAL STRUCTURE
Werner H...selenides at the El Dragón mine, Province of Quijarro, Department of Potosí, Bolivia. It forms inclusions...inclusions in kruťaite, and is
associated with clausthalite, klockmannite, umangite and tiemannite, as well...structure, El Dragón mine, Quijarro,
Potosí, Bolivia.
Introduction
The Andean mountain ranges of Bolivia and...mineralization. Bolivia is famous for two selenide
occurrences: El Dragón, province of Quijarro, and
Pacajake | 👁 Image
| | Report (issue) | | Powder Pattern: El Dragón mine, Antonio Quijarro Province, Department of Potosí, Bolivia.
3.125 (100),...09
100.00
(1) El Dragón mine, Antonio Quijarro Province, Department of Potosí, Bolivia; average of 24...hematite-bearing siltstones.
Association: Watkinsonite, clausthalite, eldragónite, krut’aite-penroseite, eskebornite...Distribution: From the El Dragón mine, Antonio Quijarro Province, Department of Potosí, Bolivia.
Name: For the...the province, Antonio Quijarro, where the first specimens were collected.
Type Material: Natural History | 👁 Image
| | Report (issue) | | = 4
X-ray Powder Pattern: El Dragón mine, Department of Potosí, Bolivia.
2.783 (100), 2.727 (55), 2...92
29.15
33.06
100.00
(1) El Dragón mine, Department of Potosí, Bolivia; average of 24 electron microprobe...watkinsonite, clausthalite,
petrovicite; Type II: watkinsonite, quijarroite, clausthalite, unnamed CuNi2Se4...From the El Dragón mine, ~30 km southwest of Cerro Rico de Potosí, Province of
Antonio Quijarro, Department...Department of Potosí, Bolivia.
Name: For Cerro Mojon, the highest mountain peak near where the first specimens | 👁 Image
| Förster, Hans-Jürgen, Bindi, Luca, Grundmann, Günter, Stanley, Chris (2018) Cerromojonite, CuPbBiSe3, from El Dragόn (Bolivia): A New Member of the Bournonite Group. Minerals, 8 (10) 420 doi:10.3390/min8100420 | Journal (article/letter/editorial) | | minerals
Article
Cerromojonite, CuPbBiSe3, from El Dragón (Bolivia):
A New Member of the Bournonite Group
Hans-Jürgen...represents a new selenide from the El Dragón mine,
Department of Potosí, Bolivia. It either occurs as minute...Mojon, the highest mountain peak closest to the El Dragón mine.
Keywords: cerromojonite; selenium; copper;...mercury; bismuth; součekite; bournonite group;
El Dragón; Bolivia
1. Introduction
The Bolivian Andes host...Charcas; and El Dragón, Province of Antonio Quijarro; both in the Department
of Potosí. The El Dragón mineralization | 👁 Image
| | Report (issue) | | X-ray Powder Pattern: El Dragón mine, Quijarro Province, Department of Potosí, Bolivia.
3.579 (100), 3.075...44.52
100.00
(1) El Dragón mine, Quijarro Province, Department of Potosí, Bolivia; average of 24 electron...hydrothermal vein-type deposit.
Association: Krut’aite, clausthalite, klockmannite, umangite, tiemannite, watkinsonite...Distribution: At the El Dragón mine, Quijarro Province, Department of Potosí, Bolivia.
Name: For the locality...6BiSe4(Se2), a new mineral species from
the El Dragón mine, Potosí, Bolivia, and its crystal structure. Can. Mineral | 👁 Image
| | Report (issue) | | 58
100.00
(1) El Dragón mine, 30 km southwest of Potosí, Quijarro province, Bolivia; average electron...nite-clausthalite-penroseite aggregates.
Association: Cerromojonite, klockmannite, clausthalite, penroseite...Distribution: At the El Dragón mine, 30 km southwest of Potosí, Quijarro province, Bolivia.
Name: The prefix...new member of the spinel supergroup from El Dragón, Bolivia. Can.
Mineral., 57, 637-646.
Mineralogical | 👁 Image
| | Journal (article/letter/editorial) | | new mineral from the Se mineralization at
El Dragón (Bolivia)
HANS-JÜRGEN FÖRSTER1,*, LUCA BINDI2, CHRIS...Hg)(Bi,Pb)Se2, is a new selenide from the El Dragόn mine, Bolivia. It typically
occurs in thin subparallel...intergrown with two unnamed Cu–Hg–Pb–Bi–Se species, clausthalite, Corich penroseite and petrovicite. It also...crystal structure, selenium, El Dragόn,
Bolivia.
Introduction
THE Andes of Bolivia host two volumetrically...district of Hiaco de Charcas, and El
Dragόn, Province of Antonio Quijarro, both in the
*E-mail: hans-juergen | 👁 Image
| | Report (issue) | | Z = 4
X-ray Powder Pattern: El Dragόn mine, Department of Potosí, Bolivia.
2.986 (100), 3.97 (90), 2.620...100.39
(1) El Dragόn mine, Province of Antonio Quijarro, Department of Potosí, Bolivia; average of 5...hematite-bearing siltstones.
Association: Watkinsonite, clausthalite, eldragónite, krut’aite-penroseite solid solution...Distribution: From the El Dragόn mine, Province of Antonio Quijarro, Department of Potosí,
Bolivia.
Name: Honors...new mineral from the Se
mineralization at El Dragón (Bolivia). Mineral. Mag., 81(3), 629-640. (2) (2018) | 👁 Image
| | Report (issue) | | Skippenite, soucekite, clausthalite, chalcopyrite, Au-Ag alloy (Otish Mountains);
clausthalite, bohdanowiczite...Canada. At the El Dragón mine,
Antonio Quijarro Province, Department of Potosí, Bolivia, From the Zálesí...Stanley (2018) Cerro-mojonite, CuPbBiSe3,
from El Dragón (Bolivia): A new member of the bournonite group. Minerals | 👁 Image
| | Journal (article/letter/editorial) | | Cacheuta Vein-Type Se Mineralization,
Mendoza Province, Argentina
Günter Grundmann 1 and Hans-Jürgen...mineralization in the Mendoza Province predominantly
consists of clausthalite, klockmannite, eskebornite...from Cacheuta from
Argentinian Se deposits in the Province of La Rioja: (I) trachytic host rock fragments...6.7 wt %, Ni < 1.2 wt %) partly replaced by clausthalite, umangite, klockmannite, eskebornite,
Ni-poor...in the Sierra de Cacheuta district, also known as el Cerro de Cacheuta,
Minerals 2018, 8, 127; doi:10 | 👁 Image
| Förster, Hans-Jürgen, Ma, Chi, Grundmann, Günter, Bindi, Luca, Stanley, Christopher J. (2019) Nickeltyrrellite, CuNi2Se4, a new member of the spinel supergroup from El Dragón, Bolivia. The Canadian Mineralogist, 57 (5) 637-646 doi:10.3749/canmin.1900025 | Journal (article/letter/editorial) | | NEW MEMBER OF THE SPINEL SUPERGROUP
FROM EL DRAGÓN, BOLIVIA
HANS-JÜRGEN FÖRSTER§
Helmholtz Centre Potsdam...selenide species from the El Dragón mine, Department of Potosı́, Bolivia. It most
frequently occurs...association with cerromojonite, klockmannite,
clausthalite, and penroseite, forming fracture fillings in...quijarroite þ
hansblockite þ watkinsonite þ clausthalite þ penroseite aggregates by oxidizing, low-T...supergroup, El Dragón,
Bolivia.
INTRODUCTION
The ore mineralization at El Dragón, Province of
Antonio Quijarro | 👁 Image
| | Journal (article/letter/editorial) | | the Ag-Sn Formation located within Argentina and Bolivia have
been investigated mineralogically and geologically...Argentina, respectively. The Geological Survey of Bolivia contributed through
help with the logistics. The...Starting with Argentina, the deposits of Pirquitas and El Quevar (Ag-Sn) as well as
Capillitas and Famatina...gold- and silverbearing tellurides.
The selenium province at La Rioja is the largest one on earth. The prominent...klockmannite
and berzelianite), tiemannite, clausthalite, accompanied by numerous other selenide components | 👁 Image
| | Journal (article/letter/editorial) | | Cacheuta Mine, Mendoza, Argentina; 2 – Virgen de Surumi mine, Potosí Department, Bolivia; 3 – El Dragón mine...mine, Potosí
Department, Bolivia; 4 – Iron Monarch open cut, South Australia; 5 – Tolbachik volcano, Kamchatka...Kamchatka, Russia; 6 – Baccu Locci Mine, Sardinia, Italy; 7 –
Musonoi Mine, Katanga (Shaba), Democratic Republic...Shinkolobwe Mine, Katanga (Shaba), Democratic Republic of Congo
(Zaïre); 9 – Repete Mine, Utah, USA;...USA; 10 – El Cóndor Mine, Vinchina Department, Argentina; 11 – Zapiga, Tarapacá Region, Chile; 12 – Kato | 👁 Image
| | Journal (article/letter/editorial) | | the south part of the Koashva open pit (Vostochnyi
mine), Mt. Koashva, Khibiny alkaline complex in Kola...andorite homeotypic series from the Monte Arsiccio mine, Apuan
Alps. European Journal of Mineralogy, 30...Arsiccio
mine, Stazzema, Apuan Alps, Tuscany, Italy (43°58′16″N, 10°17′05″E).
The Monte Arsiccio mine exploited...knowledge of magmatic
activity in the Tuscan Magmatic Province and the related ore deposits,
in particular, the...arsenic analogue of medaite, from the Molinello mine, Liguria, Italy:
occurrence and crystal structure | 👁 Image
| | Report (issue) | | Powder Pattern: El Dragόn selenide occurrence, Cordillera Oriental, southwestern Bolivia.
3.2746 (100)...69
100.00
(1) El Dragόn selenide occurrence, Cordillera Oriental, southwestern Bolivia; average of 19...Association: Watkinsonite, clausthalite, krut’aite-penroseite.
Distribution: From the El Dragόn selenide occurrence... Cordillera Oriental, Department of Potosí,
southwestern Bolivia.
Name: Honors Günter Grundmann (b. 1947)...1947), for his pioneering work on the El Dragón mine.
Type Material: Natural History Museum, London, | 👁 Image
| | Journal (article/letter/editorial) | | found on a
specimen from the El Dragón mine, Potosí Department, Bolivia, and was described by an international...Anthony R. Kampf (Kampf
et al. 2015). El Dragón is a small mine with a unique
mineralization, comprising...several very rare
selenides such as penroseite, clausthalite, petrovicite,
watkinsonite, eldragónite, and...mineral dealer, in recognition of his
long work in Bolivia and the many articles he has
published about Bolivian...learned Spanish. After graduation he found a job in Bolivia and started collecting Bolivian minerals, then | 👁 Image
| | Journal (article/letter/editorial) | |
Abstract: In a section of the abandoned Pb –As mine of Baccu Locci (SE Sardinia),
where several Se-bearing...particular environmental conditions, such as clausthalite (PbSe), berzelianite (Cu2Se), umangite (Cu3Se2)...world, Pacajake and El Dragón, occur in the Ag – Sn mining district of Potosí, Bolivia
(Southern part of...of the polymetallic Province of the Altiplano). The ore bodies, hosted by gray sandstone and shale of...is now exhausted, and the recently discovered El Dragón remains the richest natural
selenium concentration | 👁 Image
| Flégr, Tomáš, Sejkora, Jiří, Škácha, Pavel, Dolníček, Zdeněk (2018) New occurrence of kruťaite and petříčekite at the former uranium mine Slavkovice, western Moravia, Czech Republic. Bulletin Mineralogie Petrologie, 26 (2) 250-258 | Journal (article/letter/editorial) | | of kruťaite and petříčekite at the former
uranium mine Slavkovice, western Moravia, Czech Republic
Tomáš...of kruťaite and petříčekite at the former uranium mine
Slavkovice, western Moravia, Czech Republic. Bull...museum samples of vein fillings from the
uranium mine Slavkovice, western Moravia (Czech Republic). Kruťaite...was originally described
from the former uranium mine Petrovice, western Moravia
(Johan et al. 1972)....several localities e. g. El Dragón mine,
Bolivia (Grundman et al. 1990), Cacheuta mine, Argentina (Paar et | 👁 Image
| Škácha, Pavel, Sejkora, Jiří, Plášil, Jakub (2017) Příbramite, CuSbSe2, the Se-analogue of chalcostibite, a new mineral from Příbram, Czech Republic. European Journal of Mineralogy, 29 (4) 653-661 doi:10.1127/ejm/2017/0029-2623 | Journal (article/letter/editorial) | | of the U–Hg–Mo polymetallic deposit
in Guizhou province, China (the exact locality was not given
in the...66
67
68
69
The first selenide found there clausthalite was
mentioned by Růžička (1986); subsequently...hand-sized samples with příbramite were found in
mine dump material of shaft #16 (49.670 33.02800 N,
14...to příbramite (Chen et al., 1995) from
Guizhou province (China) shows higher Hg content
(0.008–0.077 apfu)...6–10 Type II.
* Příbramite from China, Gizhou province, mean of 12 analyses.
203
204
205
206
207
208 | 👁 Image
| | Journal (article/letter/editorial) | | the Angarf-Sud pegmatite,
Tazenakht, Ouarzazate Province, Souss-Massa-Draâ region,
Morocco. It occurs in...Cu6BiSe4(Se2), a new mineral species
from the El Dragón mine, Potosí, Bolivia, and its crystal
structure. Canadian...at the El Dragón mine known for its selenium
mineralization and located in province of Quijarro, Department...Department
of Potosí, Bolivia. This new mineral species is named after the
location where it was discovered...zoned krut’aite. Eldragónite is associated with clausthalite,
klockmannite, umangite, and tiemannite, as | 👁 Image
| Forster, H.-J., Rhede, D., Tischendorf, G. (2004) Mineralogy of the Niederschlema–Alberoda U–Se–polymetallic deposit, Erzgebirge, Germany. i. jolliffeite, NiAsSe, the rare Se-dominant analogue of gersdorffite. The Canadian Mineralogist, 42 (3) 841-849 doi:10.2113/gscanmin.42.3.841 | Journal (article/letter/editorial) | | comprise hematite, Ni–Co–Se-bearing löllingite, clausthalite, tiemannite, mercurian hakite–giraudite solid...hématite, löllingite contenant Ni, Co et Se,
clausthalite, tiémannite, la solution solide hakite–giraudite...minerals in the western Erzgebirge
metallogenic province of Germany are associated with
unconformity-related...following Sebearing minerals were identified: clausthalite (PbSe),
tiemannite (HgSe), naumannite (Ag2Se)...fracture zone. Closely associated minerals comprise
clausthalite, an unnamed arsenoselenide with formula
(Co | 👁 Image
| | Journal (article/letter/editorial) | | the southernmost extreme of the Bergslagen ore province in south-central Sweden.
This is the first observation...(Cu2Se), crookesite [Cu7(Tl,Ag)Se4], Cu-bearing clausthalite [(Pb,Cu)Se], eucairite (CuAgSe), Se-Cu-bearing...in the southern extreme of the Bergslagen ore province in central Sweden. Star on inset map
shows the...berzelianite, Cal = calcite, Ckt = crookesite, Clt = clausthalite, Sab = sabatierite, Sbt = sudburyite. Photomicrograph...in the southernmost part of the Bergslagen ore province in Sweden
(Fig. 1). Bergslagen comprises the intensely | 👁 Image
| | Report (issue) | | (Cu0.53Fe0.48)Ʃ=1.01(Se1.98S0.01)Ʃ=1.99. (2) El Dragón, Bolivia; average of 5 electron microprobe
analyses;...hydrothermal veinlets cutting black
shale and siltstone (Bolivia); in calcitic veinlets in porphyry (Argentina)...klockmannite, watkinsonite, native selenium (Bolivia); clausthalite,
krut’aite, molybdomenite, native selenium...Bohemia Region, Czech Republic; at the
El Dragón mine, Potosi, Bolivia and at Sierra de Cacheuta, Luján de | 👁 Image
| | Journal (issue) | | Thirty-four, Number Four
Articles
The El Desierto sulfur mine, Potosí, Bolivia . . . . . . . . . . . . . . ....of the Mazarrón-Águilas mining district,
Murcia Province, Spain . . . . . . . . . . . . . . . . . . . ...mineral localities: The Pacajake selenium mine,
Potosí, Bolivia . . . . . . . . . . . . . . . . . . . ....1980 when he paid me a visit at the
Jacupiranga mine; somehow he had learned of my mineralogical
researches...studies of the mineralogy of the now-famous
Brumado mine in Bahia, recovering countless superb crystal
specimens |
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