Jeff Weissman's Image Gallery

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Images from Jeff Weissman

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Jeff Weissman's Image Gallery With 1177 Images

Nobleite Image

Images:

Nobleite: CaB6O9(OH)2·3(H2O)

Comments: Platy nobleite microcrystals on colemanite.
Location: Corkscrew Mine, Corkscrew Canyon, Death Valley, Inyo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nolanite Image

Images:

Nolanite: (V+++,Fe++,Fe+++,Ti)10O14(OH)2

Comments: Dark gray to black massive nolanite.
Location: Fishhook Bay, Saskatchewan, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nontronite Image

Images:

Nontronite: Na0.3Fe+++2(Si,Al)4O10(OH)2·n(H2O)

Comments: Green massive nontronite in quartz.
Location: Horni Slavkov, Zapadocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Normandite Image

Images:

Normandite: NaCa(Mn++,Fe++)(Ti,Nb,Zr)Si2O7(O,F)2

Comments: Divergent acicular normandite crystals in pegmatite.
Location: Mount Partomchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Novacekite Image

Images:

Novacekite: Mg(UO2)2(AsO4)2·12(H2O)
Metanovacekite: Mg(UO2)2(AsO4)2·4-8(H2O)

Comments: Yellow, translucent platy novacekite/metanovacekite crystal aggregate.
Location: Rabejac Mine, Olmet, Herault, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Novakite Image

Images:

Novakite: (Cu,Ag)21As10
Berzelianite: Cu2Se

Comments: Gray metallic dendritic novakite in white calcite with tarnished black berzelianite.
Location: Cerny Dul, Bohemia, Vychodocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nsutite Image

Images:

Nsutite: (Mn++++1-x)(Mn++x)(O2-2x)(OH2x) where x = 0.06-0.07

Comments: Dark gray to black sub-metallic to dull massive nsutite.
Location: Nsuta, Western Province, Ghana. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Obradovicite Image

Images:

Obradovicite: H4(K,Na)Cu++Fe+++2(AsO4)(MoO4)5·12(H2O)

Comments: Brownish yellow obradovicite coatings on quartz.
Location: Chuquicamata, Antofagasta, Chile. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ohmilite Image

Images:

Ohmilite: Sr3(Ti,Fe+++)(Si2O6)2(O,OH)·2-3(H2O)

Comments: Pale yellow translucent acicular ohmilite crystal cluster in matrix.
Location: Hashidate, Ohmi cho, Niigata, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ojuelaite Image

Images:

Ojuelaite: ZnFe+++2(AsO4)2(OH)2·4(H2O)

Comments: Yellow-green ojuelaite masses on limonite and quartz.
Location: Mina Ojuela, Mapimi, Durango, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Oldhamite Image

Images:

Oldhamite: (Ca,Mg,Fe)S

Comments: Brown crystalline oldhamite grains in anhydrite.
Location: Ronneburg, Thuringen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Oligoclase Image

Images:

Oligoclase: (Na,Ca)(Si,Al)4O8
Plagioclase: (Na,Ca)(Si,Al)4O8

Comments: Clear glassy crystalline oligoclase with milky quartz and muscovite.
Location: Bakersville, Mitchell County, North Carolina, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Olivenite Image

Images:

Olivenite: Cu2AsO4(OH)
Arsenogoyazite: (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O)

Comments: White micro-botryoids of arsenogoyazite with light green acicular crystal sprays of olivenite and dark green malachite on brown limonite.
Location: Centennial Eureka Mine, Juab County, Utah. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Omphacite Image

Images:

Omphacite: (Ca,Na)(Mg,Fe++,Al)Si2O6

Comments: Dark green crystalline omphacite with glaucophane.
Location: Healdsburg, Sonoma County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Opal Image

Images:

Opal: SiO2·n(H2O)
Todorokite: (Na,Ca,K)2(Mn++++,Mn+++)6O12·3-4.5(H2O)

Comments: Dendritic todorokite in white opal.
Location: Brosso Mine, Ivrea, Torino, Piemonte, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orcelite Image

Images:

Orcelite: Ni5-xAs2 (x=0.23)

Comments: Bronze micro spherical orcelite coated with greenish zaratite.
Location: Tiebaghi Massif, New Caledonia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Oregonite Image

Images:

Oregonite: Ni2FeAs2

Comments: Steel gray, altering to brown, rounded oregonite pebble with serpentinite rock.
Location: Josephine Creek, Josephine County, Oregon, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orientite Image

Images:

Orientite: Ca2Mn++Mn+++2Si3O10(OH)4

Comments: Reddish brown massive orientite with pyrolusite.
Location: Oriente Province, Cuba. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orlymanite Image

Images:

Orlymanite: Ca4Mn++3Si8O20(OH)6·2(H2O)

Comments: Brown crystalline orlymanite with radiating structure, on inesite.
Location: N'Chwaning Mine, Kuruman, Northern Cape Province, South Africa. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Orpheite Image

Images:

Orpheite: PbAl3(PO4,SO4)2(OH)6 (?)

Comments: Opaque botryoidal orpheite crust.
Location: Near Valmy, Humboldt County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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