Particles of HOLOTYPE material of Mongolite – extremely rare niobo-silicate known only in two localities worldwide. Sample comes from ex-collection of Dr. E.I. Semenov (Semenovite-(Ce)) obtained by him from the author of the mineral Dr....
Type Locality. Ex Ruth Coulsell Collection No. 3252.
Type Locality. Tiny white fibres in a vial. Ex R. C. Erd, 1961.
Type Locality. ex Joan Lamond Collection
Type Locality. A couple of tiny white crystals on matrix. Approved 2015.
Type Locality. Tan crystals on matrix. Approved 2014.
Type Locality. Red patches of ambrinoite with yellow orpiment.
Type locality. Gatehouseite was first found at Iron Monarch in 1987. It occurs as radiating clusters of pale yellow and yellow to pale brownish orange micro crystals with barite and hematite.
Type locality. Brown patches. Ex Richard Tayler Minerals, Cobham, Surrey
Type locality. Greenish yellow acicular sprays. Formerly known as kankite from this locality.
Fibrous pale yellow crystals of a uranium mineral (approved Nov 2010) the type and only locality. The formula is (Ca0.5?0.5)(UO2)2(NbSi)O6(OH)2?2H2O. The discovery was very limited, about 100 specimens, all micros.
Type locality for widgiemoolthalite. Kambaldaite as bright green crystals(!) with pale bluish spheres of widgiemoolthalite on green gaspeite. From Westaus Mineral Museum (Blair Gartrell)
Vintage micromount: A superb 4x3mm display face specimen of Gratonite from its type locality, Cerro do Pasco, Peru. It was once a duplicate in the collection (later bequeathed the Smithsonian) of the late Neal Yedlin....
Type locality. Pale yellow crystals. Ex Dr Fred P. d’Esopo Collection via William Pinch
Type locality. Sky blue crystals
JL0537. Rodger Colling $1
Tiny clusters of olive crystals
Lovely pale blue decrespignyite-(Y) from the Type Locality, Paratoo copper mine, Yunta, Olary Province, South Australia. Specimen is 35mm wide.
