 | | Report (issue) | | Carlfrancisite Mn2+3(Mn2+,Mg,Fe3+,Al)42(As3+O3)2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42 Crystal Data:...pale Z=6 X-ray Powder Pattern: Kombat mine, Otavi Valley, Namibia. 2.826 (100), 2.371 (88), 1.552 (84)...0.22 53.25 9.37 [8.42] 98.49 (1) Kombat mine, Otavi Valley, Namibia; average of 10 electron microprobe...the E15-11 south stope, 11 level, at the 1241 m elevation, in the Asis West sector, Kombat mine, Otavi...Otavi Valley, Namibia. Name: Honors Colonel Eckhard D. Stuart (b. 1939) of Madison, Mississippi, USA., a |  | | Journal (article/letter/editorial) | | December 2014 C Carl A. Francis (b. 1949) Carlfrancisite, Mn32+(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+ O4)4[(Si...hydrothermal solutions. Carlfrancisite was found in 1982, in the E15-11 south stope, 11 level, at 1,241-meter...elevation, in the Asia West sector of the Kombat mine, Otavi Valley, Namibia. It is closely related to... To date, the Kombat mine is the type locality for eleven new species. Carlfrancisite is a yellow to...curation, and the mineral collecting community. Carlfrancisite was described and named by Frank C. Hawthorne |  | Hawthorne, Frank C., Abdu, Yassir A., Ball, Neil A., Pinch, William W. (2013) Carlfrancisite: Mn2+3(Mn2+,Mg,Fe3+,Al)42(As3+O3)2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42, a new arseno-silicate mineral from the Kombat mine, Otavi Valley, Namibia. American Mineralogist, 98 (10) 1693-1696 doi:10.2138/am.2013.4426 | Journal (article/letter/editorial) | | 98, pages 1693–1696, 2013 2+ 3+ 3+ 5+ 5+ 5+ Carlfrancisite: Mn2+ 3 (Mn ,Mg,Fe ,Al)42(As O3)2(As O4)4[(Si...arseno-silicate mineral from the Kombat mine, Otavi Valley, Namibia Frank C. Hawthorne1,*, Yassir A...14534-1800, U.S.A. Abstract 2+ 3+ 3+ 5+ 5+ 5+ Carlfrancisite, Mn2+ 3 (Mn ,Mg,Fe ,Al)42(As O3)2(As O4)4[(Si...Si)O4]2(OH)42, is a new mineral from the Kombat mine, Otavi Valley, Namibia, and occurs as curved platy aggregates...twinning was observed. Mohs hardness is 3, and carlfrancisite is brittle with a hackly fracture. The calculated |  | | Journal (article/letter/editorial) | | Pb4Al4(Si4O12)(OH)11Cl(H2O) Mammoth-Saint Anthony mine, Tiger, Pinal County, Arizona, USA (32º42’23’’N...2012-022 Oxycalcioroméite Ca2Sb2O7 Buca della Vena mine, Apuan Alps, Tuscany, Italy (43º59’55’’N 10º18’37’’E)...BaCu2Si2O7 Wessels mine, Kalahari Manganese Fields, Northern Cape Province, Republic of South Africa Hexiong...OH)4 Wessels mine, Kalahari Manganese Fields, Northern Cape Province, Republic of South Africa Hexiong...Blue Lizard mine, Red Canyon, White Canyon IMA No. 2012-031 Calciodelrioite Ca(VO3)2·4H2O West Sunday mine |
|
E15-11 south stope, 11 level, Asis West sector, Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia