Tumblestone - Dumortierite
Dumortierite is a aluminium boro-silicate hydroxide mineral. Dumortierite is commonly found in aluminium rich metamorphic rocks. Dumortierite Quartz is blue Quartz containing abundant Dumortierite inclusions.
Sizing is done on approximate length of the stone and plus the overall size.
Small - 1 to 2 cm
Medium 2.5cm
Please be aware due to the unique nature of this product no two items are identical. For this reason, the item received may vary slightly from the photograph.