Interpenetrant pseudo-cubic crystals.
A unique specimen composed of a single well terminated gemmy crystal of light blue aquamarine growing free of matrix and measuring 13 x 8 x 6 mm in size. The specimen comes from a quite...
Redefined in 2015 after garronite-Na described from Mont Saint Hilaire.
Prismatic natrolite crystals exhibiting the characteristic terminations on analcime from the Magheramorne Quarry, Larne, Co. Antrim, Northern Ireland. Photo width 2.5mm.