David K. Joyce


8.4x6.8x4.7 cm
Skorpion Mine



Item number: 20990

The top of this iron-gossan matrix is mostly covered with tarbuttite crystals. The crystals are not individual crystals but sort of composite crystals. The sub-crystals that make up the composite crystals have have sharp terminations and bevelled edges-faces. Some of the crystals are contacted from being in contact with the rock or minerals on the other side of the opening but many are excellent!