Super rare unpolished quartz with growth interference caused by Calcite crystals that obstructed its growth at different times and then, after they were dissolved, quartz crystal growth resumed but the Calcite imprints are clearly visible. Amazing nature!!

Weight: 70.3 grams

Size: 82 mm (3.23") x 33 mm x 32 mm 

 

Origin:  Minas Gerais, Brazil

       H11