Partners of Colorgems:

https://www.facebook.com/HendrikxFluorescentMinerals

https://www.bodemschat.nl/

https://www.krantz-online.de/

https://fluoromins.com.au/

Mineralogische Kring Antwerpen:

http://www.minerant.org/MKA

Stapel van Stenen:

http://www.stapelvanstenen.nl/

Musea with UV collecties:

https://kristalmuseum.nl/

http://www.geologischmuseum.nl/

http://www.deoudeaarde.nl/

https://www.twentsewelle.nl/

Fluorescentie / mineralen:

http://www.naturesrainbows.com

http://www.minershop.com

https://www.uvminerals.org/

https://www.fluomin.org/uk/accueil.php

Facebook forum:

https://www.facebook.com/groups/fluorescentminerals/