" iron pebble" mountain crystal xx

Rock crystals are often, depending on the accompanying minerals in the fissures other than as known, white – colorless.

In alpine fissures e.g. CHLORITE is very often present, which is why freshly recovered rock crystals or ADULAR are covered with a green layer – this is then mostly removed when cleaning the specimens with hydrochloric acid – in order to obtain the white colour expected by the customers.

In this case the RED colour is due to the iron mineral GOETHIT.

Weight: 290 g Dimensions: Dimensions:12 x 8 x 5 cm


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