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Hubeite
The mineral hubeite, , is a sorosilicate of the group. Structurally it also belongs to the Akatoreite group. It was found and named after the province of Hubei, China. It is common to iron ores in a mine of that region. It occurs mainly as aggregates of fan like crystals. It is dark to pale brown, has orange-brown streak and is vitreous. Hubeite has a hardness of 5.5 in the Mohs scale, one good cleavage and conchoidal fracture. It is triclinic with a space group of P1 *. The structure of hubeite is very uncommon, and in fact there is only one other mineral that fits the group, which is ruizite. == Background ==
Hubeite was discovered by Hawthorne et al. (2002) at the Daye mines in the Hubei province of China. It is classified as a sorosilicate, based on its formula (Hawthorn et al., 2004). Other related minerals would be inesite, (Hawthorne et al., 2004), ruizite (Hawthorne et al., 2002) and Akatoreite (Burns et al., 1993).
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