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Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 | |
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Berghamn, Kramfors, Ångermanland, Sweden Actinolite in acicular crystals, piemontite in lower right corner; collected by A. Osterlof. Full locality info: Norrklippen, Berghamn, Nora, Angermanland, Sweden. Alan Goldstein image and specimen. FOV = 6mm |
| © Alan Goldstein | Photo ID: 82252 View Count: 315 |
Adelite : CaMg[AsO4](OH), Hausmannite : MnMn2O4 | |
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Långban, Filipstad, Värmland, Sweden Brown-yellow massive adelite with hausmannite in matrix; View is 8 mm across |
| © DV Minerals | Photo ID: 23769 View Count: 1186 |
Adularia : KAlSi3O8 | |
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Skärhyttan, Rockesholm, Nora, Västmanland, Sweden Adular on quartz. Size 6 cm. Former collection K.Gatedal, now at Bergsskolan Filipstad |
| © Kjell Gatedal | Photo ID: 12497 View Count: 726 |
Aegirine : NaFe3+[Si2O6] | |
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Långban, Filipstad, Värmland, Sweden Unusual colorless crystals of aegerine. Size crystals 3 mm. Collection and photo Kjell Gatedal |
| © Kjell Gatedal | Photo ID: 78260 View Count: 361 |
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Alnö, Sundsvall, Medelpad, Sweden Aegirine on Calcite. Specimen size 6x4cm. Self colected 1996. Photo and collection Jorge M. Alves |
| © Jorge M. Alves | Photo ID: 103405 View Count: 210 |
Akrochordite : (Mn2+,Mg)5[(OH)2|AsO4]2 · 4H2O | |
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Långban, Filipstad, Värmland, Sweden Small rounded aggregates of Akrochordite crystals on Calcite. Field of view: 4 mm. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 52294 View Count: 876 |
Alabandite : Mn2+S | |
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Garpenberg Norra (North) Mine, Garpenberg, Hedemora, Dalarna, Sweden Alabandite crystals to 2 mm from Garpenberg Norra, Hedemora, Dalarna, Sweden. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 60847 View Count: 494 |
Alabandite : Mn2+S, Pyrrhotite : Fe7S8, (-4M), also given as Fe1-xS (x = 0 - 0.2), Calcite : CaCO3 | |
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Garpenberg Norra (North) Mine, Garpenberg, Hedemora, Dalarna, Sweden Beautiful little 1 mm alabandite crystal perched on top of a 5mm pyrrhotite crystal. Calcite, asphaltum (still quite soft) and chalcopyrite xx. Specimen size 25x x30x 35 (mm): Garpenberg Norra Mine (Garpenberg North Mine), Dalarna, Sweden A. Österlöf photo& collection no 2528 |
| © AÖ | Photo ID: 150612 View Count: 179 |
Alabandite : Mn2+S | |
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Garpenberg Norra (North) Mine, Garpenberg, Hedemora, Dalarna, Sweden Group of alabandite crystals on calcite with minor cpy in the upper part. FOV appr 3 mm, AÖ coll and photo. |
| © aö 2008 | Photo ID: 202706 View Count: 79 |
Alabandite : Mn2+S, Pyrrhotite : Fe7S8, (-4M), also given as Fe1-xS (x = 0 - 0.2), Calcite : CaCO3 | |
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Garpenberg Norra (North) Mine, Garpenberg, Hedemora, Dalarna, Sweden Tiny group with alabandite, pyrrhotite (vertical and left- one cuts the alabandite triangle) and calcite crystals from the Garpenberg North. FOV appr 3 mm, AÖ coll and photo. |
| © aö 2008 | Photo ID: 202705 View Count: 68 |
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