| smartstones.nl | Olivine Foundation | The website details the use of olivine, a naturally occurring mineral, to bind CO2, offering a potential method for reducing atmospheric carbon dioxide levels and mitigating ocean acidification. It explores various applications of olivine, including enhanced weathering, pilot projects, and potential uses across diverse environments like Earth, Water, Fire, and Air, alongside research initiatives. The site provides information on the foundation’s history, board members, ongoing research, and opportunities for support, including newsletters and volunteer opportunities. | Environment → Climate Change 479 | carbon dioxide 19 weather 817 application 3377 foundation 6678 research 8967 | |
| mineralengrou.nl | Mineralogisch Museum Grou | The museum is located in a restored farmhouse barn and features corridors and seating areas, with changing exhibitions. The collection includes a wide variety of minerals, gemstones, petrified wood, meteorites, and minerals, with detailed information in display cases. In addition to the collection, the museum offers geology and rock courses and organizes group activities such as corporate outings and children’s parties. | Museums → Natural History Museums 22 | geology 41 minerals 311 exhibition 5332 collection 7566 course 14728 | Leeuwarden → Warten 81 |
| geologieutrecht.nl | Geological Society of Middle Netherlands | The NGV is an association with approximately 200 members who are engaged in geology in the broadest sense, including fossils, minerals, gemstones, and geological phenomena. Members can register for newsletters and excursions, with a temporary disruption where excursion registration dates have been postponed. The association organizes meetings, publishes the department magazine 'Geo-graaf', and offers participants the opportunity to participate in annual excursions and working groups. | | geology 41 fossils 80 minerals 311 excursion 662 newsletter 6504 | |
| klaasnanninga.nl | Klaas Nanninga | Klaas Nanninga is a biologist who has dedicated his life to the study and love of nature, starting with hobbies like bird watching and plant identification. He has amassed an extensive collection of natural finds through years of research and collecting around the world, now showcased in his museum. The website provides information about nature excursions, lectures, and guided tours in the museum, as well as specific exhibitions such as 'Jenny and the False Dragon' which explores the role of curiosities in the history of dragons. | Knowledge → Education 69666 | excursion 662 lecture 1624 museum 2002 collection 7566 nature 9094 | |
| geokring.nl | Stichting Geologische Kring Den Bosch | The Geologische Kring Den Bosch is a club of enthusiasts who are focused on collecting minerals, fossils, and rocks. The club organizes regular meetings with guest speakers who give lectures on geological topics and excursions, often also aimed at children. Members can register and donate to participate in the searches for minerals and fossils, both in the Netherlands and abroad. | Associations → Hobby Associations 17 | rock 59 fossils 80 minerals 311 excursion 662 meetings 1011 member 10154 | North-Brabant → 's-Hertogenbosch 8868 |
| mineralennlc.nl | Dutch Lapidarists Club | The club has working groups in The Hague and Haarlem, which have workshops available for their members. The NLC offers its members various opportunities, such as publishing a club magazine, organizing gem shows and excursions, and providing courses on various aspects of mineral processing. Through workshops and other events, members learn to process, collect, and analyze minerals and fossils. | Jewelry → Gemstones 451 | fossils 80 minerals 311 gemstone 856 show 1391 course 14728 workshop 19325 | North-Holland → Haarlem 8674 |
| rocktumbler.nl | Rocktumbler.nl | The site offers information on various types of rock tumblers, including brands such as Covington Engineering, Diamond Pacific and Lortone, and describes the operation of these devices. The platform covers diverse stone types suitable for polishing, such as agate, fluorite, quartz, amethyst, lapis lazuli, obsidian and cornelian, and jasper. Visitors find information about polishing stones, the necessary materials and the potential applications of polished stones, such as in jewelry and decoration. | Sculpture → Stone Carving 92 | polish 269 stone 724 water 2501 model 3546 | |
| amathysta.nl | Amathysta | The association offers a wide range of activities, including lectures, excursions, and workshops on geology and lapidary. There are two active working groups: the General Geology Working Group, which organizes lectures and excursions, and the Lapidary Working Group, where members learn to work and polish gemstones and minerals. The association celebrates its 55th anniversary in 2025 and has a membership base primarily consisting of residents of North Holland, but members from across the Netherlands are welcome. | | geology 41 fossils 80 minerals 311 excursion 662 lecture 1624 membership 10442 | |
| tgvgeologie.nl | Twentse Geologische Vereniging | The TGV originated from a merger of the GEA Circle Twente and the NGV branch Twente and primarily consists of collectors of minerals, fossils, rocks, and micromounts. The association organizes meetings, working groups, lectures, and excursions, including activities related to mineralogy, micromounts, rocks, and fossils. A key part of the website is the magazine 'Conglomeraat', a geological magazine for amateur geologists, which provides information on geological phenomena, minerals, fossils, and the activities of affiliated associations. | | rock 59 fossils 80 working groups 171 minerals 311 excursion 662 | |
| gea-zon.nl | GEA-ZON | The GEA-ZON group regularly meets to exchange knowledge, view and compare minerals. They organize regular excursions to mineral locations in Europe, lectures, and an annual international exchange fair. The website provides information about activity programs, exchange fairs, finds, and stories related to mineralogy and geology. | Associations → Hobby Associations 17 | geology 41 finds 68 evening 287 minerals 311 excursion 662 | Sittard-Geleen → Sittard 1997 |
| mineralenverzamelen.nl | Dutch Mountain Minerals | The website covers the formation of minerals and crystals, as well as the geological processes involved. Visitors can find information about identifying stones and minerals, criteria for their evaluation, and tips for searching for these natural objects. The website also includes a webshop for purchasing minerals, information about trade fairs and associations, and links to literature and museums. | Business & Professional → Trade Shows 951 | collect 29 crystal 296 minerals 311 gemstone 856 | |