Klinozoisit
Beautiful specimen of dark green prismatic klinozoisite crystals, with the largest and terminated crystals reaching sizes up to 18 mm. […]
Pyrite
Clusters of pyrite crystals forming a unique pentagondodecahedron characteristic of pyrite .
Römerite, Coquimbite, Metavoltine
Brown, shiny crystals of the rare iron sulfate – römerite with purple crystals of coquimbite and yellow spherical aggregates and […]
Pyrite
A cluster of beautiful lustrous pyrite crystals forming pentagondodecahedra. The largest crystals are up to 13 cm big .
Stibnite, realgar
Sample of antimonite from the San Genaro location, Peru. Sample of antimonite crystals up to 20 mm in size and […]
Calcite
A beautiful specimen of calcite crystals from Quiruvilca, Peru. A very nice specimen of a druse of whitish calcite crystals.
Orpiment, pararealgar
Nice colorful specimen of auripigment with pararealgar. Sample of yellow spherical aggregates of auripigment with aggregates of orange pararealgar.
Proustite
Red aggregates of proustite up to 5 mm in size. Silver sulphoarsenide from Uchucchacua, Peru.
Augelite
A rich sample of Aluminum phosphate crystals – augelite from Peru. Green vitreous augelite crystals grown on Rock Crystal crystals.
Stibnite, gypsum
An interesting example of stibnite encased in gypsum from the Palomi mine, Peru. A sample of stibnite crystals up to […]
Tetrahedrite
Sample of tetraedrite from Huanzaly, Peru . Sample of developed crystals of tetraedrite and quartz up to 23 mm in […]
Enargite
A very nice specimen of crystallized enargite, a relatively uncommon arsenic and copper sulfide. A high-quality specimen of metallic-sheen enargite […]