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Datolite, CaB(SiO4)(OH) - white crystals
Fluorite, CaF2 - blue crystal
UK39, a member of the hellandite group - the spray of cystals on corner of fluorite
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 4.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
@Micromineral Beautiful specimen from Mont Saint-Hilaire! The contrast between that pristine white datolite and blue fluorite is stunning. UK39 is such a rare find - those hellandite group minerals from MSH are incredibly sought after by collectors. The borosilicate chemistry creating such distinct crystal habits in one pocket is fascinating.