Calcite and Chalcedony Geode – NAM 035

Calcite geode with dogtooth calcite and chalcedony

Measurements:  128 x 78 x 53 mm

Description:  A calcite geode with dogtooth calcite crystals and aggregates chalcedony. When looking closely through good magnification, one can see a tinge of blue-green colouring in the chalcedony.

This is one of only two specimens we have from a rare find, and we (and some of the Brandberg experts) haven't seen any other either.

Some of the calcite crystals have nicks.

Weight of Specimen:  316 g

Chemical Composition:  CaCO3 (calcite
(quartz and chalcedony

Hardness on Mohs Scale:  (calcite) 3
                                                   (quartz and chalcedony 6.5 to 7

Location:  Namibia. Exact locality unknown, but most probably from the Brandberg area.

Specimen Code:  NAM 035

R 1 800

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