Holdawayite (ultra rare - Type Locality), with Allactite

Item Description

Holdawayite is an ultra rare hydrated carbonate found at only three localities worldwide. This SUPER rich piece of essentially solid holdawayite is from the famous Type Locality - the Kombat Mine of Namibia. The sculptural specimen is composed of moderate-luster, sooty black, lamellar crystals. Scattered about are tiny yellow clusters of allactite, a very rare hydroxyl manganese phosphate and a couple of larger fragments of manganoan calcite. These species have been X-rayed for confirmation and then sight-confirmed as well by an expert in the field for me. It is certainly not pretty to look at, but what can you say? Ultra rare!