Azores Islands

All the specimens on this page were found by myself during two visits, in 2007 and 2023, to São Miguel, the largest island of the archipelago. There are two locations that are interesting enough for collecting microminerals, the Pumice Quarry near Ribeira Grande - to which I got permission to collect without any problem - and the Vale das Lombadas, a natural occurrence with many xenolithic syenites in the main rock, that contain a large variety of mineral species - only in the micro range, never in larger crystals.

Aegirine - 0,5 mm high
Aegirine - 0,5 mm high
Aegirine - 0,5 mm high
Aegirine - 0,5 mm high
Aegirine - 1 mm wide
Aegirine - 1 mm wide
Aegirine - 0,5 mm high
Aegirine - 0,5 mm high
Aegirine in front of amphibole - 0,3 mm high
Aegirine in front of amphibole - 0,3 mm high
Aenigmatite - 2 mm
Aenigmatite - 2 mm
Aenigmatite - 2 mm
Aenigmatite - 2 mm
Aenigmatite with pyrochlore - 1 mm
Aenigmatite with pyrochlore - 1 mm
Amphibole supergroup next to katophorite - 1 mm
Amphibole supergroup next to katophorite - 1 mm
Annite - crystal 0,3 mm
Annite - crystal 0,3 mm
Arfvedsonite - 0,5 mm high
Arfvedsonite - 0,5 mm high
Arfvedsonite - 0,4 mm high
Arfvedsonite - 0,4 mm high
Arfvedsonite - 0,5 mm high
Arfvedsonite - 0,5 mm high
Arfvedsonite in front of pyrochlore - 0,5 mm
Arfvedsonite in front of pyrochlore - 0,5 mm
Astrophyllite - 0,5 mm high
Astrophyllite - 0,5 mm high
Astrophyllite - 0,5 mm wide
Astrophyllite - 0,5 mm wide
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm crystal group
Astrophyllite - 0,3 mm crystal group
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm high
Astrophyllite - 0,3 mm
Astrophyllite - 0,3 mm
Astrophyllite with ilmenite - 0,4 mm
Astrophyllite with ilmenite - 0,4 mm
Augite - 0,5 mm high
Augite - 0,5 mm high
Bastnaesite-(Ce) - 0,5 mm
Bastnaesite-(Ce) - 0,5 mm
Chevkinite-(Ce) - 0,5 mm
Chevkinite-(Ce) - 0,5 mm
Chevkinite-(Ce) - 0,5 mm
Chevkinite-(Ce) - 0,5 mm
Ferrokatophorite - 3 mm
Ferrokatophorite - 3 mm
Fergusonite-(Y) - 0,2 mm high
Fergusonite-(Y) - 0,2 mm high
Fergusonite-(Y) on amphibole - crystal 0,2 mm high
Fergusonite-(Y) on amphibole - crystal 0,2 mm high
Fluocerite-(Ce) below two augite crystals - 0,5 mm
Fluocerite-(Ce) below two augite crystals - 0,5 mm
Fluorite - 2 mm
Fluorite - 2 mm
Fluornatropyrochlore - 0,3 mm diameter
Fluornatropyrochlore - 0,3 mm diameter
Fluornatropyrochlore - 0,5 mm diameter
Fluornatropyrochlore - 0,5 mm diameter
Fluornatropyrochlore - crystal diameter 0,5 mm
Fluornatropyrochlore - crystal diameter 0,5 mm
Fluornatropyrochlore - 0,6 mm diameter
Fluornatropyrochlore - 0,6 mm diameter
Fluornatropyrochlore - 0,4 mm diameter
Fluornatropyrochlore - 0,4 mm diameter
Fluornatropyrochlore - 1 mm
Fluornatropyrochlore - 1 mm
Fluornatropyrochlore - 0,5 mm diameter
Fluornatropyrochlore - 0,5 mm diameter
Fluornatropyrochlore - 1 mm diameter
Fluornatropyrochlore - 1 mm diameter
Fluornatropyrochlore - 0,8 mm diameter
Fluornatropyrochlore - 0,8 mm diameter
Fluornatropyrochlore - 0,3 mm diameter
Fluornatropyrochlore - 0,3 mm diameter
Fluornatropyrochlore on amphibole - 0,5 mm
Fluornatropyrochlore on amphibole - 0,5 mm
Fluornatropyrochlore pair - 0,5 mm
Fluornatropyrochlore pair - 0,5 mm
Fluornatropyrochlore with inner reflexes- 0,5 mm diameter
Fluornatropyrochlore with inner reflexes- 0,5 mm diameter
Fluornatropyrochlore with unusual inner reflexes - 0,2 mm diameter
Fluornatropyrochlore with unusual inner reflexes - 0,2 mm diameter
Fogoite-(Y) - 0,5 mm
Fogoite-(Y) - 0,5 mm
Fogoite-(Y) - 1 mm high
Fogoite-(Y) - 1 mm high
Lorenzenite - 1 mm
Lorenzenite - 1 mm
Steacyite - 0,4 mm
Steacyite - 0,4 mm
Titanite - 1 mm high
Titanite - 1 mm high
Titanite - 0,5 mm high
Titanite - 0,5 mm high
Titanite - 1 mm wide
Titanite - 1 mm wide
Titanite - 2 mm
Titanite - 2 mm
Unknown, possibly eudialyte group - sphere 0,2 mm
Unknown, possibly eudialyte group - sphere 0,2 mm
Zircon - crystal 0,3 mm
Zircon - crystal 0,3 mm
Zircon - crystal 0,4 mm
Zircon - crystal 0,4 mm
Zircon and pyrochlore - 0,5 mm
Zircon and pyrochlore - 0,5 mm
Zirkonolite, uncertain - needle 0,2 mm
Zirkonolite, uncertain - needle 0,2 mm