A showy, old-time specimen of massive, lightly iridescent, brassy algodonite with radial, colorless to off-white quartz crystal clusters from the famous Keweenaw Peninsula of Michigan. Algodonite is a copper arsenide and this is an excellent representatiive specimen. Ex Richard Hauck Collection. It goes as a nice set with the domeykite earlier in the auction 5.6 x 5.2 x 3.5 cm