Malachite on Matrix – OTH 020

Malachite on a conglomorate matrix, including shattuckite - DRC (Congo)

Measurements:  55 x 50 x 42 mm

Description:  Malachite on a conglomorate matrix, including shattuckite. The specimen also has a few small cavities, lined with malachite crystals.

The only notable damage is to the edges of the specimen.

Weight of Specimen:  72 g

Chemical Composition:  Cu2+(CO3)(OH)2 (malachite)
                                        Cu5(OH)2(SiO3)4 (shattuckite) 

Hardness on Mohs Scale:   (malachite)  3.5 - 4
                                            (shattuckite)  3.5

Location:  Congo (DRC)

Specimen Code:  OTH 020

R 350

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