ANORTHOROSELITE

$800.00

$40.00 shipping
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Ships from USA

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Tucson, Arizona, USA

7,543 for sale·132 sold

Anorthoroselite is the new name (since 2022) for Beta-Roselite, a calcium cobalt arsenate hydrate dimorphous with Roselite but with triclinic rather than monoclinic crystallography. Large miniature in size, this specimen consists of a bed of crystallized white and brown Calcite upon which a layer of burgundy-brown Anorthoroselite crystals has developed. Amongst these, a few striking vivid pink glassy bladed crystals protrude, but it is unclear if these are Roselite. The area of colourful crystals covers more than 5.5 x 3 cm, making for a significant display of this rare mineral/s. It is from the superb systematic collection assembled by brothers Martin and Michael Günther (1951-2007 & 1956-2021) and this assemblage is unlikely to be repeated.