David K. Joyce


9.0x4.7x3.0 cm
Bear Lake Diggings
Haliburton Co.
Ontario, Canada


Item number: 26371

A very nice twinned crystal of this unusual amphibole mineral. When you look at the photos, you can see notching ont he termination which are re-entrant angles of the twinned crystal. As well, you can see a line down the length of opposite sides which designated the twin plane in this crystal. Excellent!