Publication details
Iolite from the Czech Republic
| Authors | |
|---|---|
| Year of publication | 2022 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Gemmology |
| MU Faculty or unit | |
| Citation | |
| Doi | https://doi.org/10.15506/jog.2022.38.1.12 |
| Description | Transparent and pleochroic in shades of violet-blue to blue, yellow and colourless, cordierite is sometimes used as a gemstone (i.e. iolite). Cordierite, (Formula Presented), is the Mg-rich end member of a series with sekaninaite (Fe-rich end member). These minerals have long been the subject of systematic research in the Bohemian Massif (e.g. Černý & Povondra 1966; Povondra et al. 1992; Hanus et al. 2016). Samples of gem-quality cordierite were recently found during mineralogical research in the central Moldanubian pluton, at the Vanov quarry near Telč in the central part of Moldanubicum Zone. This quarry is located about 300 m north-west of Vanov village and is actively being mined for aggregate by the company Colas CZ a.s. |