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Lovdarite: K2Na6Be4Si14O36·9(H2O)
Comments: Bright white crystal sprays of lovdarite on fine-grained white natrolite. Location: Yubileinaya Pegmatite, Mount Karnasurt, Lovozero Massif, Kola Peninsula, Murmansk, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Loveringite: (Ca,Ce)(Ti,Fe+++,Cr,Mg)21O38
Comments: Small clusters of tiny (20 microns) black metallic acicular joveringite crystals in/on phlogopite. Location: Jimbelana Dyke, Norseman, Western Australia, Australia. Scale: Specimen Size 2.5x4 cm. © Diederik Visser
Lovozerite: H4Na2Ca(Zr,Ti)[Si6O18]
Comments: Pinkish lovozerite with red crystalline eudialyte. Location: Mount Rasvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Loweite: Na12Mg7(SO4)13·15(H2O)
Comments: Opaque white crystalline löweite with clear colorless halite. Location: Wilhelmshall, near Stassfurt, Sachsen-Anhalt, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Luanheite: Ag3Hg
Comments: Inclusions of luanheite, in tellurium, in quartz. Location: Mina Bambolla, Moctezuma, Sonora, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Lucasite-(Ce): CeTi2(O,OH)6
Comments: B&W image of a striated, euhedral lucasite-(Ce) crystal showing {001} and {101} faces. The dark substrate is calcite. (AmMin, v72:1006). Location: Heavy-mineral concentrate derived from an olivine lamproite tuff at Argyle, in the east Kimberley region of Western Australia. Scale: See Image. © American Mineralogist
Luddenite: Pb2Cu2Si5O14·14(H2O)
Comments: Light green crystalline crust of luddenite in patches to 1mm on matrix with colorless micro-crystals that are possibly alamosite and wickenbergite. Location: Rawhide mine, Artillery Peak dist., Mohave Co., Arizona, USA. Scale: Overall: 4 x 3.5 x 3.5 cm. © Tom Loomis / Dakota Matrix
Ludjibaite: Cu5(PO4)2(OH)4
Comments: Coating of intense blue-green microcrystals and crystalline ludjibaite. Location: Shituru, Shaba, Zaire. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ludlamite: (Fe++,Mg,Mn)3(PO4)2·4(H2O)
Comments: crystal group of Ludlamite. Location: Huanuni Mine, Oruro Department, Bolivia. Scale: Crystal size 1.5 x 1 cm. © John Veevaert
Ludlockite: (Fe++,Pb)As+++++2O6
Comments: Acicular crystals of red-orange ludlockite on quartz and chalcocite. Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Crystal size 0.4 cm. © John Veevaert