Mineral: | Herderita
| Fórmula química: | CaBe[(F,OH)|PO4] | Tamaño: | | Peso: | | Transparencia: | translúcido - transparente | Número de piezas: | | Origen: | La zona de Sakangyi, al oeste de Mogok, estado de Shan, Birmania (Myanmar) | This is a really rare herderite crystal not hydroxyl-herderite which is more common. Only a handful of pieces of this mineral species have been found. This crystal shows partly gemmy transparency and is terminated although a few smaller damages are visible the major surface shows crystal faces. The base has been polished for identification purpose and the color is a light greenish blue. A comparison study with hydroxyl-herderite has been published in the American Mineralogist. The only specimen I can offer you!
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