Vivianite

Here we have an incredibly rare cluster of crystals from Tomokoni featuring thin, lustrous, gemmy, sharp "sword"-shaped prisms intermixed with contrasting red argillaceous sandstone. The majority of the crystals are undamaged, though there are a few contacts here and there. The crystals show a slight blue hue in areas when rotated in the light, which is due to their smaller size.

Specimen #VIVBOL81807