| ⓘ Ahlfeldite Formula: Ni(SeO3) · 2H2O References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 |
| ⓘ Alfredopetrovite (TL) Formula: Al2(Se4+O3)3 · 6H2O Type Locality: |
| ⓘ Allophane Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
| ⓘ Alunite Formula: KAl3(SO4)2(OH)6 |
| ⓘ Anglesite Formula: PbSO4 References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Athabascaite Formula: Cu5Se4 |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Bellidoite ? Formula: Cu2Se |
| ⓘ Bernardevansite (TL) Formula: Al2(SeO3)3 · 6H2O Type Locality: References: Yang, Hexiong, Gu, Xiangping, Jenkins, Robert A., Gibbs, Ronald B., Downs, Robert T. (2023) Bernardevansite, Al2(Se4+O3)3⋅6H2O, dimorphous with alfredopetrovite and the Al-analogue of mandarinoite, from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 87 (3) 407-414 doi:10.1180/mgm.2023.7 |
| ⓘ Berzelianite ? Formula: Cu2-xSe (x ≈ 0.12) |
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Calcite Formula: CaCO3 References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 |
| ⓘ Cerromojonite (TL) Formula: CuPbBiSe3 Type Locality: References: 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 |
| ⓘ Cerussite Formula: PbCO3 References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcomenite Formula: CuSeO3 · 2H2O References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Clausthalite Formula: PbSe |
| ⓘ Clinochalcomenite Formula: CuSeO3(H2O)2 References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 |
| ⓘ Cobaltomenite Formula: CoSeO3 · 2H2O Description: New analysis done in 2021 (SEM, EDAX) by Joy Desor from a specimen in the collection of Elmar Lackner.
Analytical data shows a Co:Ni ratio of approx 3:1 confirming Cobaltomenite.
Notice the old entry because the similarity to Ahlfieldite:
Much of the material called "cobaltomenite" from El Dragon was identified only by XRD and is really pink cobalt-bearing ahlfeldite. Color is a very unreliable guide, as it takes only a minor amount of Co to change the color from green to pink or purple. |
| ⓘ Coronadite Formula: Pb(Mn4+6Mn3+2)O16 |
| ⓘ Covellite Formula: CuS |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Dolomite var. Iron-bearing Dolomite Formula: Ca(Mg,Fe)(CO3)2 |
| ⓘ Eldragónite (TL) Formula: Cu6BiSe4(Se2) Type Locality: References: 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 |
| ⓘ Eskebornite Formula: CuFeSe2 |
| ⓘ Esperite Formula: PbCa2Zn3(SiO4)3 |
| ⓘ Favreauite (TL) Formula: PbBiCu6O4(SeO3)4(OH) · H2O Type Locality: References: Mills, Stuart J., Kampf, Anthony R., Christy, Andrew G., Housley, Robert M., Thorne, Brent, Chen, Yu-Sheng, Steele, Ian M. (2014) Favreauite, a new selenite mineral from the El Dragón mine, Bolivia. European Journal of Mineralogy, 26 (6) 771-781 doi:10.1127/ejm/2014/0026-2405 |
| ⓘ Felsőbányaite Formula: Al4(SO4)(OH)10 · 4H2O Description: (originally reported as "basaluminite") |
| ⓘ Franksousaite (TL) Formula: PbCu(Se6+O4)(OH)2 Type Locality: References: Yang, Hexiong, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2022) Franksousaite, PbCu(Se6+O4)(OH)2, the Se6+ analogue of linarite, a new mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 86 (5) 792-798 doi:10.1180/mgm.2022.90 Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Goethite Formula: Fe3+O(OH) References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 |
| ⓘ Graphite Formula: C |
| ⓘ Grundmannite (TL) Formula: CuBiSe2 Type Locality: References: Förster, Hans-Jürgen, Bindi, Luca, Stanley, Chris J. (2016) Grundmannite, CuBiSe2, the Se-analogue of emplectite, a new mineral from the El Dragón mine, Potosí, Bolivia. European Journal of Mineralogy, 28 (2) 467-477 doi:10.1127/ejm/2016/0028-2513 |
| ⓘ Guangyuanite (TL) Formula: Pb3Cl3(Se4+O3)(OH) Type Locality: References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hansblockite (TL) Formula: (Cu,Hg)(Bi,Pb)Se2 Type Locality: |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ 'Kerstenite' |
| ⓘ Klockmannite Formula: CuSe |
| ⓘ Kruťaite Formula: CuSe2 References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Lepidocrocite Formula: Fe3+O(OH) References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 |
| ⓘ Linarite Formula: PbCu(SO4)(OH)2 |
| ⓘ Luxembourgite Formula: AgCuPbBi4Se8 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Mandarinoite Formula: Fe3+2(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Molybdomenite Formula: PbSeO3 Description: PXRD-analysed by G. Schnorrer (see https://www.mindat.org/mesg-805693.html; Schnorrer-Köhler, Günther, Grundmann, Günter, Lehrberger, Gerhard (1990) The El Dragón Mine, Potosí, Bolivia. The Mineralogical Record, 21 (2) 133-146).
Some molybdomenite from El Dragon was found to be paramolybdomenite (Pekov et al., 2025).
Paramolybdomenite from El Dragon is described as "thin-bladed crystals. Associated minerals are Co-bearing krut’aite–penroseite, chalcomenite, and dolomite. Molybdomenite- P21/c is pale yellow in transmitted light and has a greasy luster. It is brittle and has a Mohs hardness of 3. " (P21/c polytype is now known as paramolybdemenite); in Zhang, Jingnan; Yang, Hexiong; Gibbs, Ronald B. (2024) Molybdomenite-P21/c, Polymorphous with Molybdomenite and the Natural Analogue of Synthetic α-PbSe4+O3, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 62 (4). 643-652" References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 Pekov, Igor V.; Britvin, Sergey N.; Agakhanov, Atali A.; Vigasina, Marina F.; Turchkova, Anna G.; Zhegunov, Pavel S. (2025) Paramolybdomenite, PbSeO3, a new mineral dimorphous with molybdomenite from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10166 |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Native Gold Formula: Au |
| ⓘ Native Selenium Formula: Se |
| ⓘ Nickeltyrrellite (TL) Formula: CuNi2Se4 Type Locality: References: 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 Miyawaki, Ritsuro, Hålenius, Ulf, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2019) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 47. European Journal of Mineralogy, 31 (1) 197-202 doi:10.1127/ejm/2019/0031-2839 |
| ⓘ Olsacherite Formula: Pb2(Se6+O4)(SO4) References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Orlandiite Formula: Pb3(SeO3)(Cl,OH)4 · H2O |
| ⓘ Paramolybdomenite Formula: PbSeO3 References: Pekov, Igor V.; Britvin, Sergey N.; Agakhanov, Atali A.; Vigasina, Marina F.; Turchkova, Anna G.; Zhegunov, Pavel S. (2025) Paramolybdomenite, PbSeO3, a new mineral dimorphous with molybdomenite from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10166 |
| ⓘ Penroseite Formula: (Ni,Co,Cu)Se2 References: Yang, Hexiong; Gu, Xiangping; Scott, Michael M.; Jenkins, Robert A.; Gibbs, Ronald B.; Mcglasson, James A.; Downs, Robert T. (2023) Petermegawite, Al6(Se4+O3)3[SiO3(OH)](OH)9⋅10H2O, a New Al-Bearing Selenite Mineral, from the El Dragón Mine, Potosí, Bolivia. The Canadian Journal of Mineralogy and Petrology, 61 (5). 987-998 doi:10.3749/2300004 Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Petermegawite (TL) Formula: Al6(Se4+O3)3[SiO3(OH)](OH)9 · 10H2O Type Locality: |
| ⓘ Petříčekite Formula: CuSe2 References: Bindi, Luca, Förster, Hans-Jürgen, Grundmann, Günter, Keutsch, Frank, Stanley, Chris (2016) Petříčekite, CuSe2, a New Member of the Marcasite Group from the Předbořice Deposit, Central Bohemia Region, Czech Republic. Minerals, 6 (2) 33 doi:10.3390/min6020033 |
| ⓘ Petrovicite Formula: Cu3HgPbBiSe5 |
| ⓘ Phosgenite Formula: Pb2CO3Cl2 References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl Habit: sprays of needles 0.2 mm long Colour: White Description: Found on a specimen purchased as "Chalomenite". Associated with green gemmy anglesite, yello powdery "bindhemite", black sulfosalts, and tiny speck of native gold. |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quijarroite (TL) Formula: Cu6HgPb2Bi4Se12 Type Locality: References: Förster, Hans-Jürgen, Bindi, Luca, Grundmann, Günter, Stanley, Chris (2016) Quijarroite, Cu6HgPb2Bi4Se12, a new selenide from the El Dragόn Mine, Bolivia. Minerals, 6 (4) 123 doi:10.3390/min6040123 |
| ⓘ Reevesite Formula: Ni6Fe3+2(OH)16(CO3) · 4H2O |
| ⓘ Rutile Formula: TiO2 |
| ⓘ Schmiederite Formula: Pb2Cu2(Se6+O4)(Se4+O3)(OH)4 References: Yang, Hexiong, Gu, Xiangping, McGlasson, James A., Gibbs, Ronald B., Downs, Robert T. (2024) Guangyuanite, Pb3Cl3(Se4+O3)(OH), a new lead-chloride-selenite mineral from the El Dragón mine, Potosí, Bolivia. Mineralogical Magazine, 88. 97-104 doi:10.1180/mgm.2023.93 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Tiemannite Formula: HgSe |
| ⓘ Titanite Formula: CaTi(SiO4)O |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ Trogtalite Formula: CoSe2 |
| ⓘ Umangite Formula: Cu3Se2 |
| ⓘ Vaesite Formula: NiS2 |
| ⓘ Watkinsonite Formula: Cu2PbBi4(Se,S,Te)8 |
| ⓘ 'White mica' |
| ⓘ Wurtzite Formula: (Zn,Fe)S |
| ⓘ Zircon Formula: Zr(SiO4) |