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Gustavite-Lillianite Series from USA
4V5-4KXGustavite-Lillianite Series, Chalcopyrite CuFeS2 , Sphalerite ZnS , Siderite ? FeCO3 , Calcite CaCO3 , Quartz SiO2 , Pyrite FeS2
Dimensions: 73 mm x 53 mm x 24 mm
Field of View: 28 mm
Extremely complex specimen showing a whole range of sulfides and accessory minerals. Sharp sphalerite crystals, pyrite druse, and an odd structure of Lillianite-Gustavite (per analysis on previous material from this locality) are scattered over a matrix of large chalcopyrite crystals with a satin luster, accompanied by siderite, calcite, and quartz xtls.
There is some kind of epitactic growth between some of the sphalerite and chalcopyrite which warrants further examination.
This photo is a close-up of the mass of lilianite and some of the accessory minerals.
L85-KE9Lillianite Pb3-2xAgxBi2+xS6 , Galenobismutite PbBi2S4 , Kobellite Pb22Cu4(Bi,Sb)30S69 , Acanthite Ag2S
Field of View: 7 cm
Gray metallic lillianite with good cleavages and with gray metallic galenobismuthite, gray-black to iridescent blue kobellite, crude nearly black pyrargyrite, gray-black acanthite crystals and black acicular dendritic acanthite crystals (both as isolated sprays and as minute coatings) on gray tarnished wire silver. Matrix consists of clear to white quartz crystals and tan dolomite crystals. Ex Harvard University, ex Neal Yedlin, ex Ron Bentley. Specimen is available for bona fide scientific study.
7FN-311Gustavite AgPbBi3S6 , Schirmerite PbAgBi3S6 - Pb3Ag1.5Bi3.5S9
Field of View: 1.5 cm
Purple tarnished gustavite with bright metallic gray schirmerite.
3HN-G51Gustavite AgPbBi3S6
Dimensions: 3.3 cm x 2.5 cm x 1.1 cm
Tiny micro metallic patch of massive gustavite in a 3.3 x 2.5 x 1.1 cm matrix. Ex Steve Pullman collection.
GMP-588Gustavite AgPbBi3S6
Field of View: 2 mm
Striated gustavite crystal on calcite. Associated minerals not in the photograph, include, chalcopyrite and sphalerite. Brent Thorne specimen and photograph.
9RA-LYXGustavite AgPbBi3S6 , Chalcopyrite CuFeS2
Gustavite - metallic steel gray to 4 mm within a 1.5 x 1.5 cm chalcopyrite matrix. See additional photo.
037-4VVGustavite AgPbBi3S6
FOV 4 x 3 mm
Collection and photo Roberto Bosi
W01-2A8Lillianite Pb3-2xAgxBi2+xS6 , Quartz SiO2
Field of View: 5 mm
Very small, silvery-grey, metallic masses of lillianite on quartz matrix.
Purchased in 2024.