Dims: 2.74x1.42x1.65" (6.95x3.61x4.18cm)
Wt: 5.58oz (158g)
This is a chunk of massive triphylite which has altered to a beautiful patch of strengite at one end. The strengite crystals are a pale lavender color, organized as botryoidal clusters of fine radial crystals. The clusters are rather dull in luster, but under a loupe the vitreous nature of the individual needles is apparent from their sparkle. There are other minerals present, but I have not determined the species.