Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Grand Reef mine, Graham Co., Arizona, United States
- Formula
- Pb7F12Cl2
- Size
- Miniature 3x4x1.5cm
White fibrous crystal bunches in 2mm aggregate on quartz in decayed Galena.
- Availability
- Sold
- Locality
- Grand Reef mine, Graham Co., Arizona, United States
- Formula
- Pb7F12Cl2
- Size
- SmCabinet 6x6.5x4cm
- Special Info
- Type Locality
Excellent specimen showing good paragenesis of minerals. The Laurelite occurs as snow white matted, fibrous crystal aggregates on Quartz which line a decayed Galena crystal. The vug is 2cm long with about equal coverage of Laurelite. Very rare, great specimen for an Arizona or species collector. Only three world wide localities and this is the best and type locality.
- Availability
- Sold
- Locality
- Grand Reef mine, Graham Co., Arizona, United States
- Formula
- Pb7F12Cl2
- Size
- Miniature 5x4x3cm
- Special Info
- Type Locality
A respectable cluster of white/colorless, acicular Laurelite crystals. The cluster is 5mm across.
- Availability
- Sold
- Locality
- Mundo Nuevo, La Libertad dept., Peru
- Formula
- CuAsS
- Size
- Miniature 5x3x2.5cm
- Tagged
- sulfide , copper
A large single iridescent, metallic crystal of Tennantite 5cm long with superb rosette-like crystal groups from 1 to 3mm. The groups are composed of platy crystals with rounded edges. Lautite is orthorhombic and these crystals are consistent with the 1944 sketch by C. Palache, H. Berman, C. Frondel, in The system of mineralogy. Vol I, 7th edition, John Wiley & Sons, New York.
- Availability
- Sold
- Locality
- Lauta, Marienberg dist., Erzgebirge, Saxony, Germany
- Formula
- CuAsS
- Size
- Thumbnail 3x2.5x1cm
- Tagged
- sulfide , copper
- Special Info
- Type Locality
A rich almost totally pure crystal mass showing platy crystals to 1cm compact in matrix. This is a type localty specimen derived from the Freiburg Museum and is historically significant. See provenece tab for original tag with a number matching the specimen. An excellent specimen of which is virtually impossible to obtain from this locality.
- Availability
- Sold
- Locality
- Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy
- Size
- SmCabinet 7.5x1.5x3.5cm
- Tagged
- antique
- Special Info
- Antique Specimen
Three pieces of mafic rock, possibly a Basalt or Shoshonite(?), that have the words 'Salvatore Madonna' etched or impressed on one side and the date '1882' on the backside. Additionally there is an old label from the Geologic Institute at the University of Amsterdam that also notes it is a 'Basaltlava' from 1882.
Unfortunately, I was unable to find any details of the 1882 eruption and I'd definitely be interested to know how the words and date were formed on the pieces.
