Since 2013 – From Collectors for Collectors
| Chemische Formel | (Na,Ca)2Ta2O6(O,OH,F) | |
| Familie | ||
| Farbe | gelb, braun, grün | |
| Härte | 5-5,5 | |
| Kristallsystem | kubisch | |
| Glanz | Glasglanz | |
| Form | Oktaeder, Kuboktaeder | |
| Typlokalität | Massachusetts | |
| Weitere Fundorte | Afghanistan, Madagaskar, Mosambik, Pakistan, Connecticut | |
| Bildung | Magmatisch, Pegmatit | |
| Paragenesen | Glimmer, Feldspat, Topas, Turmalin, Tantalit | |
| Pseudomorphose | ||
| Toxizität |  ungiftig | |
| Strichfarbe | hellgelb | |
| Mineralklasse | Oxide | |
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| Chemische Formel | (Mg,Fe2+)7(SiO4)3(F,OH)2 | |
| Familie | ||
| Farbe | braun, orange, gelb | |
| Härte | 6 | |
| Kristallsystem | orthorhombisch | |
| Glanz | Glasglanz;Harzglanz | |
| Form | massig, prismatisch | |
| Typlokalität | Italien | |
| Weitere Fundorte | Tadschikistan, Vietnam, New York | |
| Bildung | Metamorphose | |
| Paragenesen | Spinell, Calcit, Glimmer, Magnetit, Chondrodit, Franklinit | |
| Pseudomorphose | ||
| Toxizität | ungiftig | |
| Strichfarbe | weiß | |
| Mineralklasse | Silikate | |
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| Chemische Formel | LiNaZrSi6O15 | |
| Familie | ||
| Farbe | farblos, weiß, rosa | |
| Härte | 6 | |
| Kristallsystem | orthorhombisch | |
| Glanz | Glasglanz | |
| Form | pseudohexagonal, prismatisch, tafelig | |
| Typlokalität | Washington | |
| Weitere Fundorte | Washington | |
| Bildung | Magmatisch (Pegmatite) | |
| Paragenesen | Arfvedsonit, Feldspat, Astrophyllit, Glimmer | |
| Pseudomorphose | ||
| Toxizität | ungiftig | |
| Strichfarbe | weiß | |
| Mineralklasse | Silikate | |
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