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Kipushite: (Cu,Zn)5Zn(PO4)2(OH)6·(H2O)
Comments: Green microcrystals of kipushite on matrix. Location: Kipushi, Shaba, Zaire. Scale: 10x8x5 mm. © Richard Dale / Dale Minerals
Kochsandorite: CaAl2(CO3)2(OH)4·H2O
Comments: Pearly circles of radiating white microcrystals of kochsandorite on coal. Location: Many coal deposit, Bicske-Zsambeki Basin, Tatabanya. Scale: 2.5x1.7x1.1 cm. © Richard Dale / Dale Minerals
Kurnakovite: MgB3O3(OH)5·5(H2O)
Comments: Very pale lilac-colored crystal of kurnakovite. Location: Boron, Kramer District, Kern County, California, USA. Scale: 7.2x4x2.5 cm. © Richard Dale / Dale Minerals
Loparite-(Ce): (Ce,Na,Ca)2(Ti,Nb)2O6
Comments: Sharp penetration twin of cubic loparite-(Ce) about 7 mm. across on phoenite matrix. Location: Flora Mt., Lovosero massif, Kola Peninsula, Russia. Scale: 3.8x3.3x2.6 cm. © Richard Dale / Dale Minerals
Nyerereite: Na2Ca(CO3)2 Gregoryite: (Na2,K2,Ca)CO3
Comments: Sodium (nyereteite) and potassium (gregoryite) carbonates, not stable in normal atmosphere, collected molten from the volcano and maintained in inert argon atmosphere. Location: Ol Doinyo Lengai Vulkan, Maasai Steppe, East Africa Rift Valley, Tanzania. See Link. Scale: Rock size 2 cm. © Richard Dale / Dale Minerals
Oxiberaunite: (Fe+++,Mn+++)Fe+++5(PO4)4O(OH)4·6(H2O)
Comments: Red-brown ball of radiating acicular oxiberaunite (eleonorite) microcrystals, on pegmatitic matrix. Location: LCA Mine, Bessemer City, Gaston County, North Carolina, USA. Scale: Box size 3.18 cm x 3.18 cm. © Richard Dale / Dale Minerals
Phosgenite: Pb2(CO3)Cl2
Comments: Terminated, very large crystal of partly transparent, deep brown phosgenite. Location: Touissit, Morocco. Scale: 7.1x5.5x2.4 cm. © Richard Dale / Dale Minerals
Sarabauite: CaSb10O10S6
Comments: Deep red crystalline sarabauite in matrix. Location: Sarabau Mine, Sarawak Province, Borneo. Scale: 2.2x1.2x1 cm. © Richard Dale / Dale Minerals
Tapiolite-(Fe): (Fe++,Mn++)(Ta,Nb)2O6 Tapiolite: (Fe,Mn)(Ta,Nb)2O6
Comments: Twinned, brown, dipyramid crystal of ferrotapiolite. Location: Sapucaia district, Galileia, Minas Gerais, Brazil. Scale: 4.2x3.1x3.1 cm. © Richard Dale / Dale Minerals
Tellurobismuthite: Bi2Te3
Comments: Platy hexagonal metallic crystals of tellurobismuthite to 3+ mm. in matrix. Location: Boliden, Skellefteå, Västerbotten, Sweden. Scale: 2.7x1.6x0.7 cm. © Richard Dale / Dale Minerals