Tourmaline
Name for a group of borosilicate minerals of various colors. The name has been used since the early 18th century, and the name “tourmali” was…
Name for a group of borosilicate minerals of various colors. The name has been used since the early 18th century, and the name “tourmali” was…
Recorded live session in which I discuss minerals from the Tourmaline group and show beautiful examples of them, hosted form the Kristalmuseum. Especially outstanding specimens…
Uvite is a rare and remarkable mineral that is part of the tourmaline group. Unlike the usual elongated crystals characteristic of tourmaline, uvite often forms…
Recorded live session in which I show a number of new minerals that I have added to my collection in recent times. Among others, several…
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