Sharp, lustrous isolated crystals of the very desirable and uncommon manganoan variety of adamite, green grading to purple at the tips. The crystals, to 0.9 cm, are very sharp and lustrous. From the Barlow Collection. This is the very rarest of the varietals from the mine and were found several decades ago. Try finding one today... 5.5 x 4.2 x 3.2 cm