User:Leon II/sandbox

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1. harmunite CaFe2O4 X Narrow stability in CaO-Fe2O3 system
2. hatrurite Ca3SiO5 X Narrow stability in CaO-SiO2 system
3. boggsite Na3Ca8(Si77Al19)O192·70H2O X Rare zeolite mineral
4. gottardiite Na3Mg3Ca5Al19Si117O272·93H2O X Rare zeolite mineral
5. mutinaite Na3Ca4Al11Si85O192·60H2O X Rare zeolite mineral
6. parthéite Ca2(Si4Al4)O15(OH)2·4H2O X Rare zeolite mineral
7. perlialite K9NaCa(Si24Al12)O72·15H2O X Rare zeolite mineral
8. bernalite Fe(OH)3 X Forms only at low pH
9. ammonioalunite NH4Al3(SO4)2(OH)6 X Forms only at low pH
10. meta-aluminate Al2SO4(OH)4·5H2O X Forms only at low pH
11. schwertmannite Fe3+16O16(OH)9.6(SO4)3.2·10H2O X Forms only at low pH
12. hazenite KNaMg2(PO4)2·14H2O X Hypersaline, high pH
13. balyakinite Cu2+Te4+O3 X Te ~ 0.005 ppm crustal abundance
14. carlfriesite CaTe6+Te4+2O8 X Te ~ 0.005 ppm crustal abundance
15. mroseite CaTe4+O2(CO3) X Te ~ 0.005 ppm crustal abundance
16. clearcreekite Hg1+3(CO3)(OH)·2H2O X Hg ~ 0.05 ppm crustal abundance
17. hanawaltite Hg1+6Hg2+O3Cl2 X Hg ~ 0.05 ppm crustal abundance
18. donharrisite Ni8Hg3S9 X Hg ~ 0.05 ppm crustal abundance
19. birchite Cd2Cu2(PO4)2SO4·5H2O X Cd ~ 0.09 ppm crustal abundance
20. drobecite CdSO4·4H2O X Cd ~ 0.09 ppm crustal abundance
21. lazaridisite (CdSO4)3·8H2O X Cd ~ 0.09 ppm crustal abundance
22. swedenborgite NaBe4Sb5+O7 X Rare combination of Be + Sb
23. alburnite Ag8GeTe2S4 X Rare combination of Ge + Te
24. ichnusaite Th(MoO4)2·3H2O X Rare combination of Th + Mo
25. alsakharovite -Zn NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O X 9 coexisting elements
26. carbokentbrooksite (Na,☐)12(Na,Ce)3Ca6Mn3Zr3NbSi25- X 10 coexisting elements O73(OH)3(CO3)·H2O
27. johnsenite -(Ce) [Na12Ce3Ca6Mn3Zr3WSi25O73(CO3)(OH)2 X 10 coexisting elements
28. senaite Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 X 11 coexisting elements
29. hydrohalite NaCl. 2H2O X Melts at -0.1oC
30. meridianiite MgSO4·11H2O X Melts at 2oC
31. chalcocyanite CuSO4 X Hygroscopic
32. ekaterinite Ca2B4O7Cl2·2H2O X Hygroscopic
33. kamchatkite KCu3O(SO4)2Cl X Hygroscopic
34. nitromagnesite Mg(NO3)2·6H2O X Hygroscopic
35. rorisite CaFCl X Hygroscopic
36. scacchite MnCl2 X Hygroscopic
37. sinjarite CaCl2·2H2O X Hygroscopic
38. sveite KAl7(NO3)4(OH)16Cl2·8H2O X Hygroscopic
39. tolbachite CuCl2 X Hygroscopic
40. aplowite CoSO4·4H2O X Dehydrates
41. boothite CuSO4·7H2O X Dehydrates
42. chvaleticeite MnSO4·6H2O X Dehydrates
43. hohmannite Fe3+2O(SO4)2·8H2O X Dehydrates
44. hydrodresserite BaAl2(CO3)2(OH)4·3H2O X Dehydrates
45. hydroscarbroite Al14(CO3)3(OH)36·nH2O X Dehydrates
46. lonecreekite NH4Fe3+(SO4)2·12H2O X Dehydrates
47. marthozite Cu2+(UO2)3(Se4+O3)2O2·8H2O X Dehydrates
48. zaherite Al12(SO4)5(OH)26·20H2O X Dehydrates
49. avogadrite KBF4 X Ephemeral fumarole mineral
50. carobbite KF X Ephemeral fumarole mineral
51. chloraluminite AlCl3·6H2O X Ephemeral fumarole mineral
52. cyanochroite K2Cu(SO4)2·6H2O X Ephemeral fumarole mineral
53. ferruccite NaBF4 X Ephemeral fumarole mineral
54. melanothallite Cu2OCl2 X Ephemeral fumarole mineral
55. piypite K4Cu4O2(SO4)4·(Na,Cu)Cl X Ephemeral fumarole mineral
56. ponomarevite K4Cu4OCl10 X Ephemeral fumarole mineral
57. aubertite Cu2+Al(SO4)2Cl·14H2O X Water-soluble supergene mineral
58. bayleyite Mg2(UO2)(CO3)3·18H2O X Water-soluble supergene mineral
59. caracolite Na3 Pb2 (SO4 ) 3 Cl X Water-soluble supergene mineral
60. fedotovite K2Cu3O(SO4)3 X Water-soluble supergene mineral
61. grimselite K3Na(UO2)(CO3)3·H2O X Water-soluble supergene mineral
62. pseudograndreefite Pb6(SO4)F10 X Water-soluble supergene mineral
63. redingtonite Fe2+Cr2(SO4)4·22H2O X Water-soluble supergene mineral
64. wheatleyite Na2Cu(C2O4)2·2H2O X Water-soluble supergene mineral
65. wupatkiite CoAl2(SO4)4·22H2O X X Water-soluble supergene mineral
66. gregoryite Na2CO3 X Water-soluble carbonatite lavas
67. natroxalate Na2C2O4 X Water-soluble alkaline massif mineral
68. koktaite (NH4)2Ca(SO4)2·H2O] X Water-soluble coal mine dump mineral
69. lecontite (NH4)Na(SO4)·2H2O] X Water-soluble mineral from bat guano
70. ransomite CuFe3+2(SO4)4·6H2O X Water-soluble mineral from mine fires
71. ye’elimite Ca4Al6O12(SO4) X Water-soluble high-T metamorphic mineral
72. chlorocalcite KCaCl3 X Deliquescent
73. erythrosiderite K2Fe3+Cl5·H2O X Deliquescent
74. gwihabaite (NH4)NO3 X Deliquescent
75. molysite FeCl3 X Deliquescent
76. mikasaite Fe3+2(SO4)3 X Deliquescent
77. tachyhydrite CaMg2Cl6·12H2O X Deliquescent
78. edoylerite Hg2+3(Cr6+O4)S2 X Photo-sensitive
79. metasideronatrite Na2Fe3+(SO4)2(OH)·H2O X Photo-sensitive
80. agaite Pb3Cu2+Te6+O5(OH)2(CO3) X X Microscopic
81. andychristyite PbCu2+Te6+O5(H2O) X X Microscopic
82. bairdite Pb2Cu2+4Te6+2O10(OH)2(SO4)·H2O X X Microscopic
83. chromschieffelinite Pb10Te6+6O20(OH)14(CrO4)·5H2O X X Microscopic
84. houseleyite Pb6CuTe4O18(OH)2 X X Microscopic
85. markcooperite Pb2(UO2)TeO6 X X Microscopic
86. ottoite Pb2TeO5 X X Microscopic
87. telluroperite Pb3Te4+O4Cl2 X X Microscopic
88. hutcheonite Ca3Ti2(SiAl2)O12 X TEM-identified nanomineral
89. allendeite Sc4Zr3O12 X X TEM-identified nanomineral
90. fingerite Cu11O2(VO4)6 X X X X Ephemeral fumarole Cu + V mineral
91. mcbirneyite Cu3(VO4)2 X X X X Ephemeral fumarole Cu + V mineral
92. stoiberite Cu5O2(VO4)2 X X X X Ephemeral fumarole Cu + V mineral
93. ziesite Cu2V5+2O7 X X X X Ephemeral fumarole Cu + V mineral

http://www.mining.com/web/beyond-diamonds-and-gems-the-worlds-rarest-minerals/