Ankerite – Mineral Properties, Photos and Occurrence
Ankerite is interesting and surprisingly uncommon carbonate, mostly limited to metasomatic rocks and hydrothermal veins. It can form outstanding crystals and clusters.
Ankerite is interesting and surprisingly uncommon carbonate, mostly limited to metasomatic rocks and hydrothermal veins. It can form outstanding crystals and clusters.
The Munich Show 2023 was back to the standard. Lot of new and outstanding mineral specimens, good bargains and many new publications. The main show exhibition was truly magnificent, with outstanding specimens and their paintings.
Minerals of the tourmaline supergroup occur in a wide range of colors and form spectacular crystals, which makes them highly popular among mineral collectors. Tourmaline is also important geochemical and petrological indicator.
Marcasite is very common mineral, but it is often ignored by mineral collectors. Despite its nice crystal forms, it lacks the luster of some other sulfides and its quite brittle. Its infamous instability in just slightly wet air does not help its popularity either.
Native sulphur is one of the few non-metallic and naturally occurring native elements. Despite huge drop of its industrial use, the native sulphur is still mined today. It can form highly aesthetic bright yellow crystals, which are very popular among mineral collectors.