0421 Northupite, Searles Lake, San Bernardino Co., California, USA
Type locality. Single crystal from the 350 foot level. Collected around 1970.
0426 Boleite, Amelia Mine, Santa Rosalia (El Boleo), Boleo District, Mun. de Mulege, Baja California Sur (BC Sur), Mexico
Boxed micromount with several cubic deep blue boleite crystals on matrix. These form in clay seams, so matrix specimens are fairly uncommon.
0424 Boleite, Pseudoboleite, Atacamite, Anglesite, Amelia Mine, Santa Rosalia (El Boleo), Boleo District, Mun. de Mulege, Baja California Sur (BC Sur), Mexico
Boxed micromount with 6 tiny xl specimens mounted on a card. Specimens clockwise from top left: boleite cuboctahedron, cluster of boleite cuboctahedrons, pseudoboleite on boleite, atacamite, boleite cubes on white anglesite crystals. Centre: boleite cube.
0362 Iodargyrite, Belmont mine, Belmont District, Nye Co., Nevada, USA
Microcrystals in silicified rhyolite. Ex John L Baum. Ex Franklin Mineral Museum
0356 Libethenite, Pseudomalachite, Hardway Mine, Cloncurry, Queensland
Labelled as olivenite.
0355 Terlinguaite, Mariposa Mine (California Mountain Mine), Terlingua District, Brewster Co., Texas, USA
5x1mm area of flat-lying yellow-green terlinguaite crystals on 13mm wide matrix. Rare mercury mineral
0351 Rodalquilarite, Poughite, Wendy open pit, Tambo Mine, El Indio deposit, Elqui Province, Coquimbo Region, Chile
Green crystals of rodalquilarite, partly encrusted with and embedded in crystalline yellow poughite
0345 Fluorapatite, Sapo mine, Ferruginha, Conselheiro Pena, Doce valley, Minas Gerais, Brazil
Small dark green crystals
0343 Sturmanite, Ettringite, N’Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
A small cluster of sturmanite crystals. These elongated hexagonal crystals are well formed with the largest being 2.6cm in length x 0.9cm in width. All these crystals are terminated on one end. The outer surface is brown colour while the cores appear to be black. These crystals are described as...
0332 Axinite-(Fe), Botallack Head (Wheal Cock Carn), Cliff outcrops, Botallack, St Just, St Just District, Cornwall, England
Lustrous reddish-brown translucent axinite crystals lining shallow cavities in compact mass of crystallized axinite. Ex. A. Stevenson (1916-2007) collection; ex. Howard Belsky (1958-1987). Overall Size: 3.5×2.5×1.5 cm. Crystals: 1-3 mm
0330 Helvite, Dolomite, Calcite, Chamosite, Huanggang (Huanggangliang) Fe-Sn deposit, Hexigten Banner (Keshiketeng Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China
White dolomite crystals on superb brown helvite crystals.
0328 Stanleyite, Minasragrite, Patronite, Ragra Mine (Minasragra), Huayllay District, Pasco Province, Pasco Department, Peru
Capsule with small brown fragment composed of a blue stanleyite on gray mixture of minasragrite and patronite. Type locality for all three species.
0323 Tantalite-(Mn), Ankole pegmatite field, Mbarara District, Uganda
Lustrous complex crystal of translucent-to-transparent dark-red tantalite with remnants of white albite on the rear where it was attached. Overall Size: 13x12x9 mm.