tyrolite


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tyrolite

[′tir·ə‚līt]
(mineralogy)
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Tyrolite Ca[Cu.sup.2+.sub.5][(As[O.sub.4]).sub.2] (C[O.sub.3])(OH)*6[H.sub.2]O
Tabular, emerald-green, pearly crystals and groups of tyrolite to 2 mm have been identified by EDS.
Tyrolite has been found rarely at the Cassagna mine, as small rosettes of green-blue crystals, associated with conichalcite, copper, cuprite and secondary copper minerals (Palenzona, 1991).
Here it forms fine-grained coatings on cavity walls and is associated with connellite, tyrolite and azurite.
Oxidation in the dump has produced stains and efflorescences of erythrite, tyrolite, annabergite, malachite and, rarely, conichalcite and picropharmacolite.
Pale blue to greenish blue encrustations of vitreous tyrolite have been found at Kamareza, associated with malachite and azurite.