Blue. Two different fluorescent minerals too., Al Wilkins
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 (683)
Siderite (130)
Silver (66)
Smithsonite (101)
Smoky Quartz (74)
Sphalerite (120)
Thomsonite (78)
Topaz (58)
Unidentified Species (74)
Wulfenite (158)