Laurent Bernard
Alpine and alpinotype minerals, worldwide minerals
https://mineralps.com/
Stefan Hager
Austrian minerals, mainly Lungau
https://www.stoasuacha.at/
Lutz Püschel
Alpine sceptre quartz collection
https://www.alpine-minerals.online/
Markus Rosenkranz
Austrian minerals collection
https://www.stoafex78-mineralien.at/
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