Quartz : SiO2
Stilpnomelane : (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O
As recorded:
Landsverk 1 Feldspar Quarry, Landsverk, Evje og Hornnes, Agder, Norway
Photo added to mindat.org
“Group of scepter crystals covered with micro stilpnomelane crystals. The largest doubly terminated quarts crystal is ca 7 cm long. ”
Olav Revheim - 30th November 2000
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