David K. Joyce


7.3x5.7x5.0 cm
Big Bertha Mine
Quartzite, La Paz Co.
Arizona, USA


Item number: 29777

This large fragment of quartz has a thick micaceous phase running across the top of it and that phase is laced with sharp crystals of zunyite. The zunyite crystals range from gemmy-colourless to a beigey colour. some hematite associated. Excellent!