Amethyst Geode Cluster

Amethyst crystal cluster — Image via Wikipedia: Amethyst

Rarity: Common

Object Type

Mineral specimen

Medium / Material

Quartz variety (amethyst) on basalt matrix

Production Place

Artigas Department, Uruguay

Dimensions

H 180 × W 120 × D 90 mm · 2400 g

Condition

Excellent

A hollow basalt geode half, lined with deep-violet quartz crystals, from the Artigas basalts of northern Uruguay.

Materials & Techniques

Silicon dioxide (SiO₂) with iron impurities

Location

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