Rhodizite / Londonite
Rhodizite / Londonite
Rhodizite / Londonite

Rhodizite / Londonite

€86,00

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SKU: B043
Manjaka (Sahananana), Sahatany Valley, Ibity, Antsirabe II District, Vakinankaratra, Madagascar
This specimen is partly covered with milky yellow rhodizites, which form a beautiful contrast to the partially black matrix.
9.7 x 4.1 x 3.7 cm
130.3 g

Rhodizite and Londonite are very rare minerals that crystallize in the cubic crystal system with high hardness (Mohs=8-8.5) and together with Touretite (a new mineral!) form the Rhodizite group. They belong to the megaborates and range in color from colorless to vibrant yellow. Differentiation is only possible chemically; Rhodizite primarily contains potassium, while Londonite contains cesium. Previously often milky transparent, clear to crystal-clear crystals have recently been found. The crystals are sensitive to acid and light (!). Rhodizite / Londonite are found not only in Russia but also in Madagascar, sometimes in very attractive paragenesis with tourmaline (Liddicoatite).