Pumpellyite-(Mg) [ Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O ]

Material properties

Formula Ca2MgAl2(Si2O7)(SiO4)(OH)2·H2O
Abbreviation Pmp-Mg
Variant Cr
Classifications Minerals containing OH, Minerals containing SiO4, Minerals containing H2O
IMA Status Approved/renamed (IMA 1973 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydrated, Hydrated , Hydroxide , Mineral, Aluminosilicate

Composition

Element Atoms
Al 2
H 4
Mg 1
Si 3
Ca 2
O 14
Total: 26

Specimens of Pumpellyite-(Mg)

Name Owner Materials Phase purity Image Spectra Techniques
M2100 Meionite / Muscovite / Pumpellyite-(Mg) CSIRO Meionite, Muscovite-1M, Muscovite-2M1, Prehnite, Pumpellyite-(Mg), Cr (15.4%), Scapolite 15.4 1 Reflectance
MT8407 Meionite / Prehnite CSIRO Kaolinite, Meionite, Montmorillonite, Muscovite-1M, Muscovite-2M1, Prehnite, Pumpellyite-(Mg), Cr (3.9%), Scapolite 3.9 1 Reflectance