Cluster of magenta Miguelromeroite sub-mm crystals gemmy, lustrous, vivid set in a vug of matrix. The samples from the Veta Negra mine, Chile, were originally labeled "villyaellenite".
Formula :
MnMn2Mn2(AsO4)2(HAsO4)2 · 4H2O
System: monoclinic Hardness:4 Rarity:very rare
Strunz id:8.CB.10 -
SILICATES
Name origin: Named in 2009 by Anthony Robert Kampf in honor of Miguel Romero Sanchez [1926 Oaxaca, Mexico - January 8, 1997 Tehuacán, Pueblo, Mexico], chemist, agribusiness leader, politician, and philanthropist. The Miguel Romero Award is hosted by the Tucson Gem and Mineral Society.
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 Specimen weight:90 gr.
 Crystal size:sub-mm
 Overall size: 33mm x 32 mm x 30 mm
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