Probertite (Kohnstein Quarry, Niedersachswerfen, Harztor, Nordhausen District, Thuringia, Germany)
35 x 10mm
Probertite is a prismatic, borate mineral. It was first discovered in California and named after mineralogist Frank H. Probert.
It is uncommon, but well-formed, transparent crystals like this specimen are rare. Of all the locales, those from the Kohnstein Quarry are rated as the best by one or two orders of magnitude.
Additionally, individual crystals are even more rare than other formations.
What adds further to its rarity is that it's often mined to manufacture a wide variety of products including glass, fibre-optic cables, fiberglass, soaps, ceramics and paints.
35 x 10mm
Probertite is a prismatic, borate mineral. It was first discovered in California and named after mineralogist Frank H. Probert.
It is uncommon, but well-formed, transparent crystals like this specimen are rare. Of all the locales, those from the Kohnstein Quarry are rated as the best by one or two orders of magnitude.
Additionally, individual crystals are even more rare than other formations.
What adds further to its rarity is that it's often mined to manufacture a wide variety of products including glass, fibre-optic cables, fiberglass, soaps, ceramics and paints.
35 x 10mm
Probertite is a prismatic, borate mineral. It was first discovered in California and named after mineralogist Frank H. Probert.
It is uncommon, but well-formed, transparent crystals like this specimen are rare. Of all the locales, those from the Kohnstein Quarry are rated as the best by one or two orders of magnitude.
Additionally, individual crystals are even more rare than other formations.
What adds further to its rarity is that it's often mined to manufacture a wide variety of products including glass, fibre-optic cables, fiberglass, soaps, ceramics and paints.
For every $15 spent, we will plant 1 tree to offset the carbon cost of mining, shipping and packaging crystals.
These are real and natural products, and so might have some flaws or imperfections. We have done our best to pick the best pieces available, but nature is often imperfectly perfect. Therefore, please only make the purchase if you are alright with this.
