FLUORRICHTERITE
Specimen flr-3

Dims: 3.0 x 2.2 x 2.0" (7.6 x 5.6 x 5.1 cm)

Wt: 5.62 oz. (159.4 g)

Wilberforce, Ontario, Canada

At least 8 Fluorrichterite crystals are partly embedded in the sparse calcite host of this piece. The largest of these crystals has dimensions of 2.5 x 2.0 x 0.8" (6.4 x 5.1 x 1.9 cm) and is rather heavily damaged, though this damage appears to be rather old. Most of the other crystals show similar light damage, but a few small ones are more severely so. All have a good monoclinic prismatic form, with well-defined edges and pitted but clean faces. Their color a dark brown-black with a subtle green tinge, and their luster is pearly-to-waxy. They are also essentially opaque.

Dims: 1.4 x 0.9 x 0.4" (3.7 x 2.4 x 0.9 cm)

Wt: 13 g

Wilberforce, Ontario, Canda

This thumbnail piece consists of a single, loose Fluorrichterite crystal that is in excellent condition. Its monoclinic prismatic form is reasonably good, showing moderate pitting, and interpenetration twinning is obvious. On top of all this, the piece is double-terminated. It shows the standard black-brown coloration and pearly luster of its specie, and it is opaque. Only a small amount of acid-etched, white calcite is present in one of the pits in its surface.