Original paper

Sabelliite, a new copper-zinc arsenate-antimonate mineral from Sardinia, Italy

Olmi, Filippo; Santucci, Alessandrο; Trosti-Ferroni, Renza

European Journal of Mineralogy Volume 7 Number 6 (1995), p. 1325 - 1330

22 references

published: Dec 27, 1995
manuscript accepted: Jun 9, 1995
manuscript received: Apr 27, 1995

DOI: 10.1127/ejm/7/6/1325

BibTeX file

ArtNo. ESP147050706004, Price: 29.00 €

Download preview PDF Buy as PDF


Abstract Sabelliite, ideally (Cu,Zn)2Zn[(As,Sb)O4](OH)3, is a new mineral from Is Murvonis Mine, Domusnovas, Sardinia. It occurs as intergrown aggregates or isolated crystals in a compact quartzitic matrix, in an outcrop close to worked fluorite veins of an old mine. The platy {001} disk-shaped emerald-green crystals are transparent with adamantine lustre. Associated minerals are theisite, malachite, azurite, and tetrahedrite. Electron microprobe analyses give: Cu 34.80, Zn 15.65, Si 0.33, As 15.04, Sb 4.96, O 28.00, H 0.67 (calculated), total 99.45 wt%. Optically, sabelliite is nonpleochroic, uniaxial negative, with ω = 1.802(2) and £ =1.797(2). VHN15 microhardness = 386. Density (calc.) = 4.65 g/cm3. The unit cell is trigonal with a = 8.201(1), c = 7.315(1) Å, V = 426.07(9) Å3, space group P-3, and Z = 3. The strongest lines in the Gandolfi X-ray pattern are (dobsJ , hkl) 2.522(100)(121), 2.166(88)(122), 1.805(92)(123), 1.550(100)(410), 1.513(85)(124). The IR spectrum is also given. The mineral is named after Dr. Cesare Sabelli, researcher of the C.N.R.. Sabelliite belongs to a proposed mineral family that includes spangolite, schulenbergite, namuwite, and theisite


sabelliitenew mineralcopper-zinc arsenate-antimonateIs Murvonis Mine (SardiniaItaly)