Mineralienatlas - Fossilienatlas
55 Sorosilicate Minerals |
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55.02 Sorosilicates Sorosilicate Si2O7 Groups, Generally with No Additional Anions with cations in [6] coordination |
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55.02.01a Thortveitite group |
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Gittinsit | CaZrSi2O7 | monoklin | C2 | 2 | 55.02.01a.01 |
Keiviit-(Y) | (Y,Yb)2Si2O7 | monoklin | C2/m | 2/m | 55.02.01a.02 |
Keiviit-(Yb) | (Yb,Y)2Si2O7 | monoklin | C2/m | 2/m | 55.02.01a.03 |
Thortveitit | (Sc,Y)2Si2O7 | monoklin | C2/m | 2/m | 55.02.01a.04 |
55.02.01b Thortveitite related species |
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Rowlandit-(Y) | Fe2+Y4(Si2O7)2F2 | triklin | 55.02.01b.01 | ||
Thalénit-(Y) | Y3Si3O10F | monoklin | P21/n | 2/m | 55.02.01b.02 |
Yttrialith-(Y) | Y2Si2O7 | monoklin | P21/m | 2/m | 55.02.01b.03 |
Fluorthalénit-(Y) | Y3[F|Si3O10] | monoklin | P21/n | 2/m | 55.02.01b.04 |
55.02.02 Keldyshite group |
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Keldyshit | Na2-xHxZrSi2O7·n H2O | triklin | P1 | 1 | 55.02.02.01 |
Khibinskit | K2ZrSi2O7 | monoklin | C2, Cm, C2/m | 2, m, 2/m | 55.02.02.02 |
Parakeldyshit | Na2ZrSi2O7 | triklin | P1 | 1 | 55.02.02.03 |
55.02.03 |
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Barysilit | Pb8Mn(Si2O7)3 | trigonal | R3c | 3m | 55.02.03.01 |
55.02.04 |
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Percleveit-(Ce) | (Ce,La,Nd)2[Si2O7] | tetragonal | P41 | 4 | 55.02.04.01 |
55.03 Sorosilicates Sorosilicate Si2O7 Groups, Generally with No Additional Anions with cations in [7] coordination |
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55.03.01 |
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Rankinit | Ca3Si2O7 | monoklin | P21/a | 2/m | 55.03.01.01 |
55.03.02 |
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Jaffeit | Ca6Si2O7(OH)6 | trigonal | P3 | 3 | 55.03.02.01 |
55.04 Sorosilicates Sorosilicate Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination |
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55.04.01 Melilite group |
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Åkermanit | Ca2MgSi2O7 | tetragonal | P421m | 42m | 55.04.01.01 |
Gehlenit | Ca2Al(AlSi)O7 | tetragonal | P421m | 42m | 55.04.01.02 |
Okayamalith | Ca2B[BSiO7] | tetragonal | P421m | 42m | 55.04.01.04 |
55.04.02 Fresnoite group |
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Fresnoit | Ba2TiSi2O8 | tetragonal | P4bm | 4mm | 55.04.02.01 |
Hardystonit | Ca2ZnSi2O7 | tetragonal | P421m | 42m | 55.04.02.02 |
Jeffreyit | (Ca,Na)2(Be,Al)Si2(O,OH)7 | orthorhombisch | C2221 | 222 | 55.04.02.03 |
Leukophan | NaCaBeSi2O6F | orthorhombisch | P212121 | 222 | 55.04.02.04 |
Meliphanit | Ca4(Na,Ca)4Be4AlSi7O24(F,O)4 | tetragonal | I4 | 4 | 55.04.02.05 |
Gugiait | Ca2BeSi2O7 | tetragonal | P421m | 42m | 55.04.02.06 |
55.04.03 |
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Belkovit | Ba3(Nb,Ti)6(Si2O7)2O12 | hexagonal | P62m | 6m2 | 55.04.03.01 |
55.05 Sorosilicates Sorosilicate Si2O7 Groups, Generally with No Additional Anions with dimeric cations |
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55.05.01 |
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Edgarbaileyit | Hg61+Si2O7 | monoklin | C2/m, Cm, C2 | 2/m, m, 2 | 55.05.01.01 |