5728 Strontiodresserite, Francon quarry, Montréal, Québec, Canada
Type Locality. White crystal sprays.
Type Locality. White crystal sprays.
Type Locality. Tiny yellow cubes of this rare thallium species. Width of view 3.5mm. Stack of 60 images.
Type Locality. Tiny green grains. Ex Peter Hall Collection.
Type Locality. Colourless to white prismatic crystals.
Lustrous black octahedral crystals.
Type Locality. Parallel group of crystals. Ex Peter Hall Collection.
Single red crystal (17mm longest direction) with very minor matrix. Fluoresces bright red (right hand image).
Type Locality. Pale yellow crust of this rare thallium species.
Interpenetrant slightly rounded pyrite cubes, some with truncated corners, altering to brown goethite with prismatic colourless striated prismatic stellerite crystals and minor white calcite crystals. Width of view 3.5mm. Stack of 50 images.
Green prismatic crystals. Width of specimen 11mm.
Butterscotch tabular crystals, largest 15mm across. Five views of the one specimen, each taken with iPhone 11 Pro Max plus Struman macro lens.