Bavenite is a calcium beryllium aluminosilicate, mineral species that rarely forms large crystals, and even more rarely forms beautiful specimens. This is an exceptional thumbnail specimen of competitive quality, with a complete all around spherical aggregate of bavenite showing great display impact and no damage. Alex's note says, From: Jim Houran, Dallas, Texas, December 18, 2016. Previously from Tom Campbell (South Dakota/Dallas).
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