Since 2013 – From Collectors for Collectors
| Chemische Formel | (Mg,Mn,Fe2+)Nb2O6 | |
| Familie | ||
| Farbe | schwarz | |
| Härte | 6 | |
| Kristallsystem | orthorhombisch | |
| Glanz | Glasglanz;Metallglanz | |
| Form | prismatisch, tafelig | |
| Typlokalität | Australien | |
| Weitere Fundorte | Madagaskar, Brasilien, Afghanistan, Dänemark, Mosambik, North Carolina, Pakistan | |
| Bildung | Pegmatite | |
| Paragenesen | Feldspat, Granat, Glimmer, Zirkon, Apatit, Beryll | |
| Pseudomorphose | ||
| Toxizität |  ungiftig | |
| Strichfarbe | braunschwarz | |
| Mineralklasse | Oxide | |
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| Chemische Formel | Al2Be3[Si6O18] | |
| Familie | ||
| Farbe | blau, grün, gelb, rosa, rot, weiß, farblos | |
| Härte | 7,5-8 | |
| Kristallsystem | hexagonal | |
| Glanz | Fettglanz;Glasglanz | |
| Form | tafelig, prismatisch, hexagonal | |
| Typlokalität | ||
| Weitere Fundorte | weltweit | |
| Bildung | Magmatisch, hydrothermal, Metamorphose, Sedimentär | |
| Paragenesen | Feldspat, Glimmer, Quarz, Fluorit, Topas, Turmalin, Spodumen, Amblygonit, Kassiterit, Tantalit, Columbit | |
| Pseudomorphose | ||
| Toxizität | ungiftig | |
| Strichfarbe | weiß | |
| Mineralklasse | Silikate | |
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| Chemische Formel | NaBe[PO4] | |
| Familie | ||
| Farbe | farblos | |
| Härte | 5,5-6 | |
| Kristallsystem | monoklin | |
| Glanz | Diamantglanz;Glasglanz | |
| Form | tafelig, prismatisch | |
| Typlokalität | Maine | |
| Weitere Fundorte | Afghanistan, Brasilien, Pakistan | |
| Bildung | hydrothermal | |
| Paragenesen | Feldspat, Turmalin, Apatit, Beryll, Columbit | |
| Pseudomorphose | ||
| Toxizität | ungiftig | |
| Strichfarbe | weiß | |
| Mineralklasse | Phosphate | |
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