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Graeserite : (Fe3+ ,Ti)4Ti3AsO13(OH) |
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Lercheltini (Lärcheltini) area, Binn Valley, Wallis (Valais), Switzerland
EDX: 44.6% Ti, 39.7% Fe, 12.3% As, 1.5% Sb, 1.9% Pb. Graeserite is therefore almost confirmed. Picture width 2 mm. Collection and photograph Stephan Wolfsried |
| © Stephan Wolfsried | Photo ID: 67653 View Count: 428 |
Graeserite : (Fe3+ ,Ti)4Ti3AsO13(OH) |
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Gorb, Lercheltini (Lärcheltini) area, Binn Valley, Wallis (Valais), Switzerland
Picture width is 3mm. black to rusty-red hairlike crystals of Graeserite. Specimen collected from Bart de Werd. |
| © Elmar Lackner | Photo ID: 75532 View Count: 292 |
Graeserite : (Fe3+ ,Ti)4Ti3AsO13(OH), Calcite : CaCO3 |
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Passaic Pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
The world's largest Graeserite crystal and the one and only specimen of this species from the Franklin District (Ref.: Verbeek, E. et al (2006) Mineral News: 22(9): 8-9). The Crystal is black, lustrous, and tabular. It is 3.8 x 3.7 x 0.3 cm in size and is in a matrix of calcite, some of which is salmon-orange in colour. Associated species include ... |
| © SHMM | Photo ID: 113713 View Count: 361 |
