Jahnsite-(CaMnMn), a new member of the whiteite group from Mangualde, Beira, Portugal

JD Grice, PJ Dunn, RA Ramik - American Mineralogist, 1990 - pubs.geoscienceworld.org
Jahnsite-(CaMnMn) was chemically analyzed for elements with atomic numbers greater
than nine using an ARL-sEMe electron microprobe with an operating voltage of l5 kV and a …

Jahnsite—whiteite solid solutions and associated minerals in the phosphate pegmatite at Hagendorf-Süd, Bavaria, Germany

IE Grey, WG Mumme, SM Neville, NC Wilson… - Mineralogical …, 2010 - cambridge.org
… and jahnsite from different zoned regions correspond to jahnsite-(CaMnMn), whiteite-(CaMnMn
Mo-Ka CCD intensity data were collected on a twinned crystal of the (CaMnMn)-dominant …

Whiteite-(CaMnMn), CaMnMn2Al2[PO4]4(OH)2·8H2O, a new mineral from the Hagendorf-Süd granitic pegmatite, Germany

VN Yakovenchuk, E Keck… - Mineralogical …, 2012 - pubs.geoscienceworld.org
… 2 Al 2 [PO 4 ] 4 (OH) 2 ·8H 2 O, is a new hydrous phosphate of Ca, Mn and Al, which is closely
related to both jahnsite-(CaMnMn) and the minerals of the whiteite group. It is monoclinic, …

Jahnsite-(CaMnZn) from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, and structural flexibility of jahnsite-group minerals

IE Grey, E Keck, AR Kampf… - Mineralogical …, 2020 - pubs.geoscienceworld.org
… The crystals contain intergrowths of jahnsite-(CaMnZn) and jahnsite-(CaMnMn) on a scale
of ~50 μm. The calculated density is 2.87 g cm −3 based on the empirical formula. Optically it …

New evidence of alteration of graftonite-(Mn) from the Malpensata pegmatite, Colico municipality, Lecco province, Italy

P Vignola - The Canadian Mineralogist, 2018 - pubs.geoscienceworld.org
Jahnsite-(CaMnMn) occurs as very thin aggregates of minute… In thin section P 11
jahnsite-(CaMnMn) replaces both … shows a clear replacement of jahnsite-(CaMnMn) at the …

The Keckite problem and its bearing on the crystal chemistry of the Jahnsite group: Mossbauer and electron-microprobe studies

R Hochleitner, KT Fehr - The Canadian Mineralogist, 2010 - pubs.geoscienceworld.org
… of the jahnsite group, keckite would be “jahnsite-CaMnFe 3+ ”… solid-solution with
jahnsite-(CaMnMn). The analyzed … jahnsite-(CaMnMn) and keckite, in which jahnsite-(CaMnMn) …

On the occurrence of jahnsite/whiteite phases on Mars: A thermodynamic study

C Drouet, M Loche, S Fabre, PY Meslin - American Mineralogist, 2022 - degruyter.com
… The single literature report dealing with the thermal degradation of jahnsite-(CaMnMn) showed
a start of degradation at a quite low temperature, with a first peak maximum at 125 C, and …

Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany

IE Grey, CM MacRae, E Keck, WD Birch - Mineralogical Magazine, 2012 - cambridge.org
… of the strunzite and associated jahnsite crystals are reported in Table 1. Both … jahnsite
is Al-bearing and its composition is close to that we have previously reported for jahnsite-(CaMnMn

[PDF][PDF] Crystal chemistry of some natural phosphates and sulfates containing mixed anionic radical

AP Chernyatieva, VN Yakovenchuk… - …, 2013 - researchgate.net
… During investigations of secondary pegmatite phosphates from Hagendorf (Germany), we
have located a new whiteite-jahnsite-group mineral that was named whiteite-(CaMnMn) [ 1 ]. …

[PDF][PDF] CNMNC guidelines for the use of prefixes and suffixes in mineral nomenclature, and for the preservation of historical names

F Hatert, SJ Mills, M Pasero, PA Williams - MM7, 2012 - orbi.uliege.be
… -jahnsite group is based on a root name followed by parentheses containing 3 chemical
suffixes: whiteite(CaMnMg), jahnsite-(CaMnMg), and jahnsite-(CaMnMn) are valid names …