Allophane

Image

Allophane from Kelly Mine, Magdalena District, Socorro County, New Mexico, USA

© Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

Properties

Formula Al2O3(SiO2)1.3-2.0·2.5-3.0H2O
Abbreviation Alp
Luminescence emitter UO2
IMA Status Grandfathered (pre-IMA), 1816
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Amorphous
Tags Hydrated , Mineral, Aluminosilicate

Composition

Element Wt%
H 2.24
Al 23.97
Si 16.22
O 57.57
Total: 100

Reference

Reference Lines Spectra Images
Gorobets and Rogojine 2002 4 0 0