Haiweeite

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Haiweeite
Haiweeite-171829.jpg
General
CategoryNesosilicate
Formula
(repeating unit)
Ca[(UO2)2Si5O12(OH)2]·3(H2O)
Strunz classification9.AK.25
Dana classification53.3.2.2
Crystal systemOrthorhombic
Crystal classDipyramidal (mmm)
Space groupOrthorhombic
H-M symbol: (2/m 2/m 2/m)
Space group: Pbcn
Identification
Other characteristicsRadioactive.svg Radioactive

Haiweeite is a mineral of uranium and has the chemical formula: Ca[(UO2)2Si5O12(OH)2]·3(H2O). It is a secondary mineral of uranium, a product of oxidation. It has a greenish yellow color. It has a Mohs hardness of about 3.5 and is fluorescent under UV light.

It was named after the Haiwee Reservoir, Inyo County, California, US, where it was first found.

References[edit]