Quartz var. Agate

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By Species > Quartz & Agates > Agates

Quartz var. Agate

Mineral Species: Quartz var. Agate

Chemical Formula: SiO2

Chemical Name: Silicon Dioxide

Mineral Class: Tectosilicate

Mineral Notes: It is rare for any mineral to show more patterns created by nature than Agate. In reality Agate is Chalecedony Quartz that forms in concentric layers about some common centre. Each individual Agate forms by filling a cavity in host rock. As a result, Agate is often found as round nodules, with concentric bands like the rings of a tree trunk.

Description: A round specimen of multi-banded Agate of exceptional attractiveness. The body contains several concentric zones of varying shades of orange, red, blue and pink. The centre contains a tiny cavity lined with many tiny quartz crystals.

Location: Eastern Highlands, Zimbabwe.

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