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Edenite: NaCa2Mg5Si7AlO22(OH)2  
Pargasite: NaCa2(Mg,Fe++)4Al(Si6Al2)O22(OH)2

Comments: Blocky, dark green crystals of visually indistinguishable pargasite and edenite.
Location: Kolonne bei, Embilipitiya, Sri Lanka. Scale: 4.5 x 1.7 x 3.7 cm.
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Elbaite: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Comments: Doubly terminated tri-color elbaite (tourmaline) with minor white clevelandite (albite).
Location: Himalaya mine, San Diego County, California, USA. Scale: 3 x 1.5 cm.
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Ephesite: NaLiAl2(Al2Si2)O10(OH)2  
Hausmannite: Mn++Mn+++2O4

Comments: Flesh-colored ephesite associated with dark brownish black hausmannite.
Location: Gloucester mine. Postmasburg, Cape province. S. Africa. Scale: 5.5 x 5 cm.
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Epidote: Ca2(Fe+++,Al)3(SiO4)3(OH) = Ca2(Fe,Al)Al2(SiO4)(Si2O7)O(OH)

Comments: Dark green, blocky epidote with transparent quartz.
Location: Copper Mt., Prince of Wales, Alaska. Scale: 7 x 5 cm.
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Euchroite: Cu2(AsO4)(OH)·3(H2O)

Comments: Green, well developed, coarsely-crystalline euchroite on matrix.
Location: L'Ubietová (Libethen) Slovak Republic. Scale: 1.9 x 1.2 x 0.8 cm.
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Euclase: BeAlSiO4(OH)

Comments: Euclase with sharp edges and great color. This specimen is from one of the famous and finest world finds of euclase, in the Colombian Emeralds area.
Location: Chivor, Columbia. Scale: 1.2 x 0.6 cm.
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Ferberite: Fe++WO4

Comments: Ferberite with minor siderite selvage.
Location: Panasqueira (2nd level), in the region of Beira Baixa, Portugal. Scale: 6 x 5 cm.
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Ferro-actinolite: [ ]Ca2Fe++5Si8O22(OH)2

Comments: Prismatic crystals of ferro-actinolite showing terminal crystal faces..
Location: Astor, Shigar Valley Pakistan. Scale: 4.5 x 3.3 x 4.2 cm.
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Fluellite: Al2(PO4)F2(OH)·7(H2O)  
Bariosincosite: Ba(V++++O)2(PO4)2·4(H2O)

Comments: Vivid green crystals of bariosincosite well placed on a matrix covered by colorless, tabular fluellite with some minor metavariscite.
Location: Eugui Quarry, Cantera Azkarate, Eugui, Navarra, Spain. Scale: Rosette size: 0.3 x 0.2 cm.
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Fluorite: CaF2  
Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)

Comments: Well-developed, prismatic, reddish creedite crystals on green fluorite.
Location: Mina Navidad, Rodeo, Durango, Mexico. Scale: 9 x 5 x 5.3 cm.
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Fluorite: CaF2

Comments: Red-orange octahedral fluorite crystals on an albite matrix with well defined edges and faces.
Location: Pointe Kurz (3600 m altitude), Mont Blanc Massif, Haute-Savoie, France. Scale: Crystal size is 2.1 x 1.5 cm.
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Forsterite: Mg2SiO4  
Olivine: (Mg,Fe)2SiO4

Comments: Peridot (Forsterite) recrystallized at the base.
Location: Skardu, Nooristan, Pakistan. Scale: 2.5 x 2.7 cm.
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Gartrellite: Pb(Cu,Fe++)2(AsO4,SO4)2(CO3,H2O)0.7

Comments: Lime green gartrellite on matrix associated with mimetite. Former Martín Oliete Fontela collection.
Location: Tsumeb mine, Tsumeb, Namibia. Scale: 6x4x3 cm.
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Gibbsite: Al(OH)3  
Doyleite: Al(OH)3

Comments: Botryoidal spheres of doyleite growing along with its dimorph gibbsite. Analysis shows that doyleite dominates the mix. There are also minor canary yellow phlogopite crystals.
Location: Baoshan, Yunnan, China. Scale: 8 x 6.5 x 1.9 cm.
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Gold: Au  
Silver: Ag

Comments: Very well crystallized Electrum (Silver rich gold) on quartz. The analysis gave 31.47% silver.
Location: Verespatak (now Rosia Montana), Transylvania, Romania. Scale: 2.8 x 3.4 cm.
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Grossular: Ca3Al2(SiO4)3  
Vesuvianite: Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4

Comments: Blocky, tan-colored vesuvianite with white grossular (garnet).
Location: Sierra de la Cruz, Lago Jaco, Coahuila, Mexico. Scale: 3.5 x 4.5 cm.
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Hausmannite: Mn++Mn+++2O4  
Ephesite: NaLiAl2(Al2Si2)O10(OH)2

Comments: Flesh-colored ephesite associated with dark brownish black hausmannite.
Location: Gloucester mine. Postmasburg, Cape province. S. Africa. Scale: 5.5 x 5 cm.
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Hedenbergite: CaFe++Si2O6  
Ilvaite: CaFe++2Fe+++Si2O7O(OH)

Comments: Doubly terminated, black ilvaite on crystals of greenish gray hedenbergite with minor galena.
Location: First Sovietsky mine, Dalnjegorsk, Russia. Scale: 4 x 2.8 x 1.8 cm.
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Helvite: Mn4Be3(SiO4)3S

Comments: Large (for the species), triangular yellowish creamy colored crystals of helvite on white, albite matrix.
Location: Navegador mine, Conselheiro Pena, Minas Gerais, Brazil. Scale: Crystal size 0.7 x 0.7 cm.
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Hematite: Fe2O3

Comments: Black, platy hematite and minor white magnesite.
Location: Brumado, Bahia, Brazil. Scale: 9 x 4.5 cm.
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