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Zeophyllite, Ca4Si3O8(OH,F)4•2(H2O), Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany. White Zeophyllite hemispheres in association with Calcite. Fov 2,6 mm. Copyright: © C.H.M.-Schäfer

Zeophyllite, Ca4Si3O8(OH,F)4•2(H2O), Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany. White Zeophyllite hemispheres in association with Calcite. Fov 2,6 mm. Copyright: © C.H.M.-Schäfer

Stilpnomelane, K(Fe++,Mg,Fe+++)8(Si,Al)12(O,OH)27•n(H2O), Landsverk 1, Evje og Hornnes, Aust Agder, Norway. Brown leafy crystals on epidote and albite. Fov 7.1 mm.  Collection: Ludwig Siebler Copyright: Hannes Osterhammer

Stilpnomelane, K(Fe++,Mg,Fe+++)8(Si,Al)12(O,OH)27•n(H2O), Landsverk 1, Evje og Hornnes, Aust Agder, Norway. Brown leafy crystals on epidote and albite. Fov 7.1 mm. Collection: Ludwig Siebler Copyright: Hannes Osterhammer

Symplesite. Saubachriss, Muldenberg, Vogtland, Sachsen, Deutschland FOV=6 mm Photo Stephan Wolfsried

Symplesite. Saubachriss, Muldenberg, Vogtland, Sachsen, Deutschland FOV=6 mm Photo Stephan Wolfsried

Elpidite (Var: Calcian Elpidite), (Na, Ca)ZrSi6O15•3(H2O), Gjerdingselva, Nordmarka, Lunner, Oppland, Norway. A 1,5 mm group of brown, translucent, terminated calcian elpidite crystals in vuggy ekerite-rock. Copyright: © OT. Ljøstad

Elpidite (Var: Calcian Elpidite), (Na,

Nontronite, Na0.3Fe+++2(Si,Al)4O10(OH)2•n(H2O), Falgayrolles, Monteils, Aveyron, Occitanie, France. Yellow needles of nontronite. Fov 1,4 mm. Copyright: © Vincent Bourgoin

Nontronite, Na0.3Fe+++2(Si,Al)4O10(OH)2•n(H2O), Falgayrolles, Monteils, Aveyron, Occitanie, France. Yellow needles of nontronite. Fov 1,4 mm. Copyright: © Vincent Bourgoin

Yofortierite,  (Mn,Mg)5Si8O20(OH)2•8-9(H2O), Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada. Tufts < 2 mm. MOB coll. “Black” yofortierite. From a small specimen with the yofortierite spanning > 1½ cm and looking nearly black in part.

Yofortierite, (Mn,Mg)5Si8O20(OH)2•8-9(H2O), Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada. Tufts < 2 mm. MOB coll. “Black” yofortierite. From a small specimen with the yofortierite spanning > 1½ cm and looking nearly black in part.

Vertumnite, 	Ca8Al4(Al4Si5)O12[(OH)36•10(H2O), Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Latium, Italy. translucent lamellae of vertumnite from the TL, dimension area mm. 2,3 x 2,3. Copyright: © L.C. 2011

Vertumnite, Ca8Al4(Al4Si5)O12[(OH)36•10(H2O), Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Latium, Italy. translucent lamellae of vertumnite from the TL, dimension area mm. 2,3 x 2,3. Copyright: © L.C. 2011

Tuscanite, K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)•(H2O), and Diopside, Valle Biacchella, Sacrofano, Roma, Latium, Italy. Perfect green diopside crystals on well formed transparent tuscanite crystals.

Tuscanite, K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)•(H2O), and Diopside, Valle Biacchella, Sacrofano, Roma, Latium, Italy. Perfect green diopside crystals on well formed transparent tuscanite crystals.

Tuscanite, 	K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)•(H2O), Magliano Romano, Roma, Italy

Tuscanite, K(Ca,Na)6(Si,Al)10O22(SO4,CO3,(OH)2)•(H2O), Magliano Romano, Roma, Italy

Picropharmacolite, Ca4Mg(AsO3OH)2(AsO4)2•11(H2O), Bauhauser Revier, Nentershausen - Bauhaus, Richelsdorfer Gebirge, Hesse, Germany. Fov 7 cm. Collection/Copyright:	Werner Simon

Picropharmacolite, Ca4Mg(AsO3OH)2(AsO4)2•11(H2O), Bauhauser Revier, Nentershausen - Bauhaus, Richelsdorfer Gebirge, Hesse, Germany. Fov 7 cm. Collection/Copyright: Werner Simon

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