Calcite - Axe-head twin

Reference: 1858

Single transparent calcite crystal showing the rare 'Axe-head' twinning.  Moor Farm quarry is known for producing a limited number of these twins from a single cavity in 1981 but none since and the quarry is worked out and overgrown. This crystal shows clear 'Axe-head' twinning and is a choice example from the find.  Ex. Alan Wardman collection. For more details about the find see Roy Starkey's excellent book Minerals of the English Midlands (published 2018)- Page 75

Formula: CaCO₃

Status: Sold

Dimensions: 38x33x21mm

Size: Miniature (M)