Calcite (twin)

A classic twinned Calcite from Egremont.  This Calcite is termed a “heart-twin” and is colourless, gemmy and very lustrous, with well-formed striated termination faces.  Most unusually the twin has two prismatic Calcite crystals attached into it on one side, these are equally colourless and gemmy.  This is a large and well-formed Calcite heart-twin, from the West Cumberland Iron Ore Field.  The exact mine is unknown, but the majority of twinned Calcites mainly originated from Gillfoot mine adjacent to, and partly beneath, the town of Egremont.  I have seen numerous examples of this habit from Egremont over the years and without any doubt this is a magnificent specimen.