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is usually banded or free-formed and found in red
81" - width bottom
inspiration and decisiveness
blacks and grays
Dumortierite "Blue Quartz" Large Sphere #04 - 3.45" / 87mm Tiger Eye is usually banded or free-formed882g 1. 944lbs 31. 11oz 3. 45" 87mm Dumortierite (dumortierite), a difficult name to pronounce so some call it by its informal name, Blue Quartz. Dumortierite is an aluminum borate silicate mineral with a hardness of 7. Its crystal system is orthorhombic. Its usual growing habits are massive, radiating, fibrous and columnar. Sometimes it forms prismatic crystals. It occurs in pegmatites and other coarse grained acid igneous rocks. Its colors include
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