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Montgomeryite: Ca4MgAl4(PO4)6(OH)4·12(H2O)
Comments: Matrix specimen covered with sprays to 0.5 cm of salmon colored montgomeryite crystals. Location: Tip Top Mine, Custer County, South Dakota, USA. Scale: 13 x 8 cm. © John Veevaert
Mottramite: PbCu(VO4)(OH) Beaverite: PbCu++(Fe+++,Al)2(SO4)2(OH)6
Comments: Specimen of quartz with a thick druse of green mottramite (cuprodescloizite) crystals and a scattered grouping of micro beaverite crystals (lemon yellow in color). Location: Tsumeb Mine, Tsumeb, Namibia. Scale: 3.3 x 2.5 cm. © John Veevaert
Mozartite: CaMn+++SiO4(OH)
Comments: Massive, crystalline mozartite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 9.5 x 9.7 cm. © John Veevaert
Murmanite: (Na,[ ])2{(Na,Ti)4[Ti2(O,H2O)4Si4O14](OH,F)2}·2H2O
Comments: Metavolcanic matrix hosting several bright pink lath shaped crystals of murmanite. Location: Ilimaussaq, Illua, Greenland. Scale: Crystal size 1.6 cm. © John Veevaert
Nagyagite: AuPb(Sb,Bi)Te2-3S6
Comments: Nagyagite partially covered with calcite. Location: Sacaramb (Nagyag), Romania. Scale: Crystal size 1 cm. © John Veevaert
Nahcolite: NaHCO3
Comments: Massive, translucent nahcolite. Location: Anvil Point, Rifle, Garfield County, Colorado, USA. Scale: 2.1 x 1.4 cm. © John Veevaert
Natrochalcite: NaCu2(SO4)2(OH)·(H2O) Krohnkite: Na2Cu(SO4)2·2(H2O)
Comments: Royal blue kröhnkite and green natrochalcite. Location: Chiquicamata, Chile. Scale: 3.5 x 2 cm. © John Veevaert
Natrolite: Na2[Al2Si3O10]·2(H2O) Eudialyte: Na4(Ca,Ce)2(Fe++,Mn,Y)ZrSi8O22(OH,Cl)2 (?)
Comments: Druse of gemmy, red eudialyte crystals to 1 mm on white natrolite. Location: Mt. St. Hilaire, Quebec, Canada. Scale: Picture size 1.5 cm. © John Veevaert
Nifontovite: Ca3B6O6(OH)12·2(H2O)
Comments: Transparent spray of nifontovite crystals. Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 2.3x0.7x0.5 cm. © John Veevaert
Norbergite: Mg3(SiO4)(F,OH)2
Comments: Numerous orange to orange-brown dipyramidal crystals of norbergite in white matrix. Location: Piukkala, Near Pargas, Finland. Scale: 2.1 X 2.7 cm. © John Veevaert
Olsacherite: Pb2(SeO4)(SO4)
Comments: Light yellow crystals of olsacherite up to 2 mm in matrix. Location: Colquechaca, Potosí, Bolivia. Scale: Picture size 1.5 cm. © John Veevaert
Olshanskyite: Ca2[B3O3(OH)6]OH·3(H2O) Henmilite: Ca2Cu[B(OH)4]2(OH)4
Comments: Milky white olshanskyite hosting crystals of deep blue henmilite to 6 mm across. Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 6 mm. © John Veevaert
Orthoclase: KAlSi3O8 Lorenzenite: Na2Ti2Si2O9
Comments: Striated, dark violet crystal of lorenzenite in cream-colored orthoclase. Location: Khibiny Massif, Kola Peninsula, Russia. Scale: 1.3 x 1.2 cm. © John Veevaert
Orthoserpierite: Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O)
Comments: Vivid blue green sheets and coatings of orthoserpierite on matrix. Location: Galiuro Mt. Copper Creek, Pinal County, Arizona, USA. Scale: 3.0 X 4.4 cm. © John Veevaert
Osarizawaite: PbCuAl2(SO4)2(OH)6
Comments: Light blue micro crystals of osarizawaite and minor azurite filling vugs. Location: Silver Hill Mine, near Marana, Pinal Co. Arizona, USA. Scale: 3 x 2 cm. © John Veevaert
Oyelite: Ca10B2Si8O29·12(H2O) Bultfonteinite: Ca2SiO2(OH,F)4
Comments: White encrustation of oyelite covering brownish botryoidal bultfonteinite. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 2 x 4 cm. © John Veevaert
Pabstite: Ba(Sn,Ti)Si3O9
Comments: Pabstite grains in matrix. It is essentially the tin analog of benitoite with tin replacing titanium in the formula 3:1. Pabstite fluoresces under SW UV light as seen in the photo. Location: Kalkar Quarry, Santa Cruz County, California, USA. Scale: 4.5 x 3 cm. © John Veevaert
Palermoite: (Sr,Ca)(Li,Na)2Al4(PO4)4(OH)4
Comments: Less than 1cm, vug with micro crystals of palermoite. Location: Palermo mine, New Hampshire, USA. Scale: Picture size 0.5 cm. © John Veevaert
Paratacamite: (Cu,Zn)2(OH)3Cl Christelite: Zn3Cu2(SO4)2(OH)6·4(H2O)
Comments: Robins-egg blue christelite with dark green paratacamite on matrix. Location: San Francisco mine, Sierra Gorda, Chile. Scale: 3 cm. © John Veevaert
Parsettensite: (K,Na,Ca)(Mn,Al)7Si8O20(OH)8·2(H2O) (?)
Comments: Yellowish brown microcrystals of parsettensite on a crystalline matrix with pyrite and apatite. Location: Foote mine, Cleveland County, North Carolina, USA. Scale: Picture size 1 cm. © John Veevaert