Cassiterite Crystals on Cleavelandite Matrix agate Cabochon The yellow color is on

The yellow color is on the surface of the crystal

Some kunzite crystals have multiple terminations

From Cave in Rock

There may be some in each lot that are not rod shaped

The pieces will show a brief red phosphorescence from the calcite with a 365 nm UV light

Cassiterite Crystals on Cleavelandite Matrix agate Cabochon The yellow color is onBeautiful cassiterite crystals on a matrix of cleavelandite albite. Cassiterite is a tin oxide mineral that is often found in association with cleavelandite, a platy variety of albite. Cleavelandite is a common constituent of pegmatites, where it forms warped masses of mineral with lamellae parallel to (010) and may be twinned on the albite law. Cassiterite crystals on cleavelandite are rare and highly sought after by mineral collectors. They exhibit