Axinite-(Fe) with Actinolite

Axinite-(Fe) with Actinolite from Colebrook Hill Mine, Rosebery, Tasmania, Australia, measuring 70 × 57 × 45 mm and weighing 174 grams. This is a silicate association with a specific Tasmanian mine attribution. The iron-rich Axinite identification gives the specimen a more precise mineralogical identity than the broader historical name Axinite alone.

Axinite-(Fe) is a calcium-bearing borosilicate, while Actinolite belongs to the amphibole group. The recorded association therefore brings together two distinct silicate families. It provides an engaging comparison for collectors interested in minerals connected with metamorphic and fluid-related geological processes, where different elements and structures can be represented within the same assemblage.

Lustrous brown to plum-toned plates meet at sharp-looking angles, with paler fine material visible around parts of the group. The flatter crystal surfaces and the lighter background provide a pleasing contrast in texture. Close viewing brings out the overlapping arrangement, letting the individual plates contribute to the specimen's character rather than reading it simply as a dark cluster. The specimen comes from the David Vince Collection. Its interest lies in the named Tasmanian occurrence and the pairing of an Axinite-group mineral with an amphibole. That gives a collector several routes into the piece's story, from the local geology to systematic mineral relationships, while the provenance preserves the later history of this individual example.