This half size flat contains a diverse selection of rare minerals from Mount Saint Hilaire in Quebec, Canada, originating from the Gerd Tremmel collection of 1980. The pieces display various textures, colour variations and mineralogical structures typical of this globally renowned alkaline intrusion. Several specimens show fine-grained to massive aggregates as well as complex intergrowths and zoned areas, reflecting the exceptional geochemical diversity of the locality.
Geology & Origin
Mount Saint Hilaire is one of the world’s most famous localities for rare silicates, oxides and carbonates, known for its exceptionally diverse paragenesis. The mineralisation formed through differentiated alkaline magmatism, creating highly unusual geochemical environments that led to the development of many rare mineral species. The pieces in this flat illustrate these unique geological conditions and provide an authentic impression of the mineralogical diversity of this classic locality.