5533 Robertsite, Montgomeryite, Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA
Type Locality for robertsite. Ex John Lewis collection.
Species
Albite (82)
Amethyst (59)
Analcime (124)
Anatase (102)
Anglesite (73)
Aragonite (72)
Azurite (168)
Barite (198)
Brochantite (67)
Calcite (578)
Cassiterite (96)
Cerussite (183)
Chabazite (193)
Chalcopyrite (83)
Chrysocolla (69)
Copper (96)
Crocoite (100)
Cuprite (99)
Dolomite (111)
Fluorapatite (75)
Fluorite (274)
Galena (80)
Goethite (123)
Gold (245)
Gypsum (81)
Hematite (148)
Hemimorphite (68)
Libethenite (95)
Magnetite (62)
Malachite (233)
Mimetite (169)
Natrolite (132)
Phillipsite (141)
Pyrite (250)
Pyromorphite (208)
Quartz (682)
Siderite (130)
Silver (66)
Smithsonite (101)
Smoky Quartz (74)
Sphalerite (120)
Thomsonite (78)
Topaz (58)
Unidentified Species (74)
Wulfenite (158)