SIDERITE with APATITE var FRANCOLITE

A quartz matrix with the upper surface covered with translucent tan coloured siderite crystals of rhombohedral habit.?? Showing through the siderite are masses of very small white francolite crystals.

8.0cms x 4.0cms x 3.2cms.

ex Ian Acworth Collection #CW69

Tincroft Mine, Illogan, Camborne, Cornwall, UK