Structures by: Welch M. D.

Total: 46

Diegogattaite

CaCu2H2Na2O21Si8

Rumsey, M. S.Welch, M. D.Kampf, A. R.Spratt, J.

Mineralogical Magazine (2013) 77, 8 3155-3162

a=12.2439(6)Å   b=15.7514(4)Å   c=10.6008(3)Å

α=90.00°   β=125.623(2)°   γ=90.00°

(Na0.13 Ca0.41 Mg0.45 Mn1.01) (Mg4.87 Mn0.13) Si8 O22 (O H)2

Ca0.41H2Mg5.32Mn1.14Na0.13O24Si8

Reece, J.J.Redfern, S.A.T.Welch, M.D.Henderson, C.M.B.

Mineralogical Magazine (1969-) (2000) 64, 255-266

a=9.5611Å   b=18.04579Å   c=5.3056Å

α=90°   β=102.569°   γ=90°

(Na0.13 Ca0.41 Mg0.452 Mn1.008) (Mg4.866 Mn0.134) Si8 O22 (O H)2

Ca0.41H2Mg5.318Mn1.142Na0.13O24Si8

Reece, J.J.Welch, M.D.Redfern, S.A.T.Henderson, C.M.B.

Mineralogical Magazine (1969-) (2000) 64, 255-266

a=9.5824Å   b=18.07669Å   c=5.3104Å

α=90°   β=102.493°   γ=90°

H0.5K1.5Mg2O7Si2

H0.5K1.5Mg2O7Si2

Welch, M. D.Bindi, L.Petříček, V.Plášil, J.

Acta Crystallographica Section B (2016) 72, 6 822-827

a=5.0535(3)Å   b=5.0535(3)Å   c=13.2229(6)Å

α=90.00°   β=90.00°   γ=120.00°

?

H0K1.5Mg2O7Si2

Welch, M. D.Bindi, L.Petříček, V.Plášil, J.

Acta Crystallographica Section B (2016) 72, 6 822-827

a=8.7623(10)Å   b=5.0703(7)Å   c=13.2505(11)Å

α=90°   β=90°   γ=90°

Cesbronite

Cu3O8TeH4

Missen, O. P.Mills, S. J.Welch, M. D.Spratt, J.Rumsey, M. S.Birch, W. D.Brugger, J.

Acta Crystallographica Section B (2018) 74, 1 24-31

a=2.93172(16)Å   b=11.8414(6)Å   c=8.6047(4)Å

α=90°   β=90°   γ=90°

Mavlyanovite

Mn5Si3

Yusupov, R. G.Stanley, C. J.Welch, M. D.Spratt, J.Cressey, G.Rumsey, M. S.Seltmann, R.Igamberdiev, E.

Mineralogical Magazine (2009) 73, 43-50

a=6.8971Å   b=6.8971Å   c=4.8075Å

α=90°   β=90°   γ=120°

FHMgO

FHMgO

Crichton, W. A.Parise, J. B.Muller, H.Breger, J.Marshall, W. G.Welch, M. D.

Mineralogical Magazine (2012) 76, 25-36

a=10.1299Å   b=3.0723Å   c=4.676Å

α=90°   β=90°   γ=90°

Phase-X

H0.5K1.5Mg2O7Si2

Welch, M. D.Konzett, J.Bindi, L.Kohn, S. C.Frost, D. J.

American Mineralogist (2012) 97, 1849-1857

a=5.0646Å   b=5.0646Å   c=13.2379Å

α=90°   β=90°   γ=120°

Seeligerite

Cl3IO4Pb3

Bindi, L.Welch, M. D.Bonazzi, P.Pratesi, G.Menchetti, S.

Mineralogical Magazine (2008) 71, 771-783

a=7.971Å   b=7.976Å   c=27.341Å

α=90°   β=90°   γ=90°

FHOZn

FHOZn

Crichton, W. A.Parise, J. B.Muller, H.Breger, J.Marshall, W. G.Welch, M. D.

Mineralogical Magazine (2012) 76, 25-36

a=10.2280Å   b=3.1125Å   c=4.7165Å

α=90°   β=90°   γ=90°

Asisite

ClO4Pb3.5Si0.5

Welch, M. D.

Mineralogical Magazine (2004) 68, 247-254

a=3.8932Å   b=3.8932Å   c=22.803Å

α=90°   β=90°   γ=90°

Kingstonite

Ir0.727Rh2.273S4

Stanley, C. J.Criddle, A. J.Spratt, J.Roberts, A. C.Szymanski, J. T.Welch, M. D.

Mineralogical Magazine (2005) 69, 447-453

a=10.4616Å   b=10.7527Å   c=6.2648Å

α=90°   β=109.000°   γ=90°

NaNa2Mg5Si8O21(OH)3

H3Mg5Na3O24Si8

Camara, F.Oberti, R.Della Ventura, G.Welch, M. D.Maresch, W. V.

American Mineralogist (2004) 89, 1464-1473

a=9.883Å   b=54.082Å   c=5.277Å

α=90.045°   β=103.068°   γ=89.960°

Brunogeierite

Fe2GeO4

Welch, M. D.Cooper, M. A.Hawthorne, F. C.

Mineralogical Magazine (2001) 65, 441-444

a=8.4127Å   b=8.4127Å   c=8.4127Å

α=90°   β=90°   γ=90°

Richterite

Ca1.05Mg5Na2.85O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9076Å   b=17.988Å   c=5.2706Å

α=90°   β=104.252°   γ=90°

Richterite

Ca1.09Mg4.02Na2.73Ni0.98O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9073Å   b=17.978Å   c=5.2669Å

α=90°   β=104.303°   γ=90°

Richterite

Ca1.12Mg2.96Na2.64Ni2.04O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9024Å   b=17.965Å   c=5.2603Å

α=90°   β=104.361°   γ=90°

Richterite

Ca1.07Mg1.95Na2.79Ni3.05O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.8956Å   b=17.948Å   c=5.2567Å

α=90°   β=104.413°   γ=90°

Richterite

CaMg1.01Na3Ni3.99O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.8886Å   b=17.933Å   c=5.2525Å

α=90°   β=104.461°   γ=90°

Richterite

Ca1.02Na2.98Ni5O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.8927Å   b=17.926Å   c=5.2534Å

α=90°   β=104.480°   γ=90°

Richterite

Ca1.1Co2.15Mg2.85Na2.66O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9312Å   b=18.015Å   c=5.2731Å

α=90°   β=104.245°   γ=90°

Richterite

CaCo3.87Mg1.13Na3O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9568Å   b=18.049Å   c=5.2742Å

α=90°   β=104.413°   γ=90°

Richterite

Ca0.94Co5Na3.06O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9724Å   b=18.069Å   c=5.2775Å

α=90°   β=104.261°   γ=90°

Richterite

Ca1.1Co3.04Mg1.96Na2.76O24Si8

Della Ventura, G.Robert, J.-L.Raudsepp, M.Hawthorne, F. C.Welch, M. D.

American Mineralogist (1997) 82, 291-301

a=9.9436Å   b=18.029Å   c=5.2740Å

α=90°   β=104.259°   γ=90°

Richterite

CaK2Mg5NaO24Si8

Hawthorne, F. C.Della Ventura, G.Robert, J.-L.Welch, M. D.Jenkins, D. M.

American Mineralogist (1997) 82, 708-716

a=10.0547Å   b=17.997Å   c=5.2746Å

α=90°   β=104.832°   γ=90°

Richterite

Ca1.2K1.6Mg5Na0.8O24Si8

Hawthorne, F. C.Della Ventura, G.Robert, J.-L.Welch, M. D.Jenkins, D. M.

American Mineralogist (1997) 82, 708-716

a=10.0209Å   b=18.001Å   c=5.2730Å

α=90°   β=104.786°   γ=90°

Richterite

Ca1.4K1.2Mg5Na0.6O24Si8

Hawthorne, F. C.Della Ventura, G.Robert, J.-L.Welch, M. D.Jenkins, D. M.

American Mineralogist (1997) 82, 708-716

a=9.9884Å   b=18.016Å   c=5.2730Å

α=90°   β=104.746°   γ=90°

Richterite

Ca1.6K0.4Mg5Na0.4O24Si8

Hawthorne, F. C.Della Ventura, G.Robert, J.-L.Welch, M. D.Jenkins, D. M.

American Mineralogist (1997) 82, 708-716

a=9.9548Å   b=18.021Å   c=5.2735Å

α=90°   β=104.724°   γ=90°

Clinochlore (deuterated)

Al2D8Mg5O18Si3

Welch, M. D.Marshall, W. G.

American Mineralogist (2001) 86, 1380-1386

a=5.332Å   b=9.224Å   c=14.414Å

α=90°   β=97.07°   γ=90°

Clinochlore (deuterated)

Al2D8Mg5O18Si3

Welch, M. D.Marshall, W. G.

American Mineralogist (2001) 86, 1380-1386

a=5.308Å   b=9.186Å   c=14.316Å

α=90°   β=97.27°   γ=90°

Clinochlore (deuterated)

Al2D8Mg5O18Si3

Welch, M. D.Marshall, W. G.

American Mineralogist (2001) 86, 1380-1386

a=5.243Å   b=9.068Å   c=14.117Å

α=90°   β=97.38°   γ=90°

Leucophoenicite

Ca0.64H2Mg0.04Mn6.28O14Si3Zn0.04

Welch, M. D.Marshall, W. G.Ross, N. L.Knight, K. S.

American Mineralogist (2002) 87, 154-159

a=10.8259Å   b=4.8565Å   c=11.3758Å

α=90°   β=103.956°   γ=90°

Manganogrunerite

Ca0.1Fe3.937H2Mg1.25Mn1.901O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.63005Å   b=18.3425Å   c=5.34374Å

α=90°   β=102.1748°   γ=90°

Manganogrunerite

Ca0.1Fe3.938H2Mg1.251Mn1.899O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.63541Å   b=18.3403Å   c=5.34220Å

α=90°   β=102.1312°   γ=90°

Manganogrunerite

Ca0.1Fe3.938H2Mg1.25Mn1.9O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.64716Å   b=18.3470Å   c=5.34266Å

α=90°   β=102.0842°   γ=90°

Manganogrunerite

Ca0.1Fe3.939H2Mg1.249Mn1.9O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.66448Å   b=18.3592Å   c=5.34435Å

α=90°   β=102.0158°   γ=90°

Manganogrunerite

Ca0.1Fe3.937H2Mg1.249Mn1.902O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.65866Å   b=18.3543Å   c=5.34388Å

α=90°   β=102.0409°   γ=90°

Manganogrunerite

Ca0.1Fe3.937H2Mg1.25Mn1.901O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.67514Å   b=18.3750Å   c=5.34480Å

α=90°   β=101.9463°   γ=90°

Manganogrunerite

Ca0.1Fe3.938H2Mg1.252Mn1.898O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.68020Å   b=18.3852Å   c=5.34547Å

α=90°   β=101.9161°   γ=90°

Manganogrunerite

Ca0.1Fe3.937H2Mg1.25Mn1.901O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.68373Å   b=18.3884Å   c=5.34604Å

α=90°   β=101.8916°   γ=90°

Manganogrunerite

Ca0.1Fe3.938H2Mg1.199Mn1.897O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.68509Å   b=18.3886Å   c=5.34607Å

α=90°   β=101.8720°   γ=90°

Manganogrunerite

Ca0.1Fe3.938H2Mg1.249Mn1.901O24Si7.812

Reece, J. J.Redfern, S. A. T.Welch, M. D.Henderson, C. M. B.McCammon, C. A.

Physics and Chemistry of Minerals (2002) 29, 562-570

a=9.68245Å   b=18.3848Å   c=5.34572Å

α=90°   β=101.8796°   γ=90°

Symesite

Cl4O12Pb10S

Welch, M. D.Cooper, M. A.Hawthorne, F. C.Criddle, A. J.

American Mineralogist (2000) 85, 1526-1533

a=19.727Å   b=8.796Å   c=13.631Å

α=82.21°   β=78.08°   γ=100.04°

Schwartzembergite

ClI0.334O2Pb1.666

Welch, M. D.Hawthorne, F. C.Cooper, M. A.Kyser, T. K.

The Canadian Mineralogist (2001) 39, 785-795

a=3.977Å   b=3.977Å   c=12.566Å

α=90°   β=90°   γ=90°

Pargasite

Al3Ca2H2Mg4NaO24Si6

Welch, M. D.Knight, K. S.

European Journal of Mineralogy (1999) 11, 321-331

a=9.8930Å   b=17.937Å   c=5.2802Å

α=90°   β=105.518°   γ=90°