Mathewrogersite


Composition: Pb7(Fe3+,Cu)GeAl3Si12O36(OH,H2O,)6
Crystal System : Trigonal
Colours: Colourless, yellow, pale green
Lustre : Adamantine, pearly
Hardness (H) : 2
Specific Gravity (S.G) : 4.76
Year of Discovery: 1984
IMA Number: 1984-042
IMA Status: Approved
Discovered By: John Innes (Tsumeb mineralogist)
Named for: Mathew Rogers (early prospector)

Tsumeb is the Type Locality

Distribution

Extremely rare. The level of the mine from which the type specimen was recovered is unknown.

Occurrence

  • Supergene

Paragenetic and General Notes

Mathewrogersite forms sub-parallel intergrowths of flattened six-sided crystals (to 0.3 mm), with possible rhombohedral faces. It also forms radiating aggregates of scales and blades, to 1 mm diameter.

On the type specimen, mathewrogersite occurs in cavities in corroded sphalerite (Keller and Dunn, 1986).