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Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, Nulvi, Anglona, Sassari Province, Sardinia, Italy. Fov 4 mm. Collection/Photo Giorgio Bortolozzi

Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, Nulvi, Anglona, Sassari Province, Sardinia, Italy. Fov 4 mm. Collection/Photo Giorgio Bortolozzi

Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, and Manganese Oxides,  Nulvi, Anglona, Sassari Province, Sardinia, Italy. Green celadonite with probable rancieite. Base 3,2 mm. Collection and photo Giorgio Bortolozzi

Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, and Manganese Oxides, Nulvi, Anglona, Sassari Province, Sardinia, Italy. Green celadonite with probable rancieite. Base 3,2 mm. Collection and photo Giorgio Bortolozzi

Muscovite (Var: Phengite), KAl2(AlSi3O10)(OH)2, Montaldo mine, Frazze and Rocconi localities, Borgata Oberti, Montaldo di Mondovì, Corsaglia Valley, Cuneo Province, Piedmont, Italy. Fov 2 mm. Red crystals of Phengite. Collection/Photo Bruno Marello

Muscovite (Var: Phengite), KAl2(AlSi3O10)(OH)2, Montaldo mine, Frazze and Rocconi localities, Borgata Oberti, Montaldo di Mondovì, Corsaglia Valley, Cuneo Province, Piedmont, Italy. Fov 2 mm. Red crystals of Phengite. Collection/Photo Bruno Marello

Polycrase-(Y). Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italie FOV=1.7 mm Photo © Stephan Wolfsried

Polycrase-(Y). Seula Mine, Monte Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola, Piemont, Italie FOV=1.7 mm Photo © Stephan Wolfsried

Clinochlore

Clinochlore

Glauconite, (K,Na)(Fe+++,Al,Mg)2(Si,Al)4O10(OH)2, on Quartz, Bertocchi quarry, San Pietro Mussolino, Vicenza Province, Veneto, Italy. Balls with needles of Glauconite. Fov 3,5 x 2,5mm. Copyright: © Giovanni Scapin 2015

Glauconite, (K,Na)(Fe+++,Al,Mg)2(Si,Al)4O10(OH)2, on Quartz, Bertocchi quarry, San Pietro Mussolino, Vicenza Province, Veneto, Italy. Balls with needles of Glauconite. Fov 3,5 x 2,5mm. Copyright: © Giovanni Scapin 2015

Quartz (Var: Amethyst), Clinochlore, Calcite Photo Copyright © Nicu Pascanu Locality: Iraí, Alto Uruguai region, Rio Grande do Sul, Brazil Olive-green Clinochlore that covering the Quartz pseudomorph after Anhydrite formations host on light violet Amethyst crystals.

Quartz (Var: Amethyst), Clinochlore, Calcite Photo Copyright © Nicu Pascanu Locality: Iraí, Alto Uruguai region, Rio Grande do Sul, Brazil Olive-green Clinochlore that covering the Quartz pseudomorph after Anhydrite formations host on light violet Amethyst crystals.

Muscovite (Var: Sericite), KAl2(AlSi3O10)(OH)2, with Mimetite and Willemite, Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA. Fov 4 mm. Creamy-white, minute platy aggregates of muscovite variety sericite with yellow mimetite and colorless willemite. Rolf Luetcke specimen and photo

Muscovite (Var: Sericite), KAl2(AlSi3O10)(OH)2, with Mimetite and Willemite, Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA. Fov 4 mm. Creamy-white, minute platy aggregates of muscovite variety sericite with yellow mimetite and colorless willemite. Rolf Luetcke specimen and photo

Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, Siusi Alp, Gardena Valley, Bolzano Province, Trentino-Alto Adige, Italy. Blue green, opaque masses in volcanic matrix. Fov 4x3 mm. Copyright © Simone Citon

Celadonite, K(Mg,Fe++)(Fe+++,Al)[Si4O10](OH)2, Siusi Alp, Gardena Valley, Bolzano Province, Trentino-Alto Adige, Italy. Blue green, opaque masses in volcanic matrix. Fov 4x3 mm. Copyright © Simone Citon

Chromphyllite Kaber pit, near Sludyanka, Baikal Taille=0.5 mm Photo / collection…

Chromphyllite Kaber pit, near Sludyanka, Baikal Taille=0.5 mm Photo / collection…

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