...F ig . 3. Crystal clusters and small crusts of golden-yellow chrysothallite: ( a ) with bright green avdoninite, olive-green belloite, pale bluish chlorothionite and aqua-transparent, colourless halite on basalt scoria from the Pyatno fumarole; ( b ) with bright green avdoninite and minor pale...

...Fig. 5. Observed and calculated powder X-ray diffraction patterns of bojarite with admixed belloite (B) and halite (H). The solid line corresponds to calculated data. The crosses correspond to the observed pattern. The vertical bars mark all possible Bragg reflections. The difference between...

... minerals are vendidaite, eriochalcite, Mg-rich aubertite, magnesioaubertite, belloite, alunite, kaolinite, and halloysite. Riotintoite forms colorless platy crystals up to 0.1 × 0.4 × 0.4 mm in size and exhibits the forms {010} (the major form), {001}, {100}, {110}, {01 }, {1 0}, {2 0}, {123}, { 23}, { 31...

... scoria cone, flinteite occurs with langbeinite, aphthitalite, fluoborite, sylvite, halite, tenorite, hematite, zincite, chubarovite, krasheninnikovite, vanthoffite, etc. In the Glavnaya Tenoritovaya fumarole (Second scoria cone), flinteite is associated with mellizinkalite, belloite, avdoninite...

...Fig. 2. Sanguite: (a) unaltered, long prismatic bright red crystals in a cavity of basalt scoria; (b) slightly altered, dull reddish coarse prismatic crystals forming a massive, parquet-like crust, with olive green belloite. FOV width: (a) 2.75 mm, (b) 3.4 mm. Photo: I.V. Pekov and A.V. Kasatkin. ...

...Fig. 1 Aggregates formed by grains (crude crystals) of mellizinkalite (1): a – with kainite (2) on crust consisting of belloite and sylvite; b – with sanguite KCuCl 3 (2), avdoninite (3) and chlorothionite (4) on white crust consisting of carnallite and sylvite. Photo: I.V. Pekov & A.V...

..., Chile. Associated minerals are aubertite, magnesioaubertite, belloite, eriochalcite, alunite, kaolinite, and halloysite. Vendidaite forms colorless platy crystals up to 0.01 × 0.3 × 0.3 mm in size; these occur in clusters up to 0.5 mm across. Vendidaite is brittle, with estimated Mohs’ hardness of 2–2...

... Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with euchlorine, fedotovite, hematite, tenorite, lyonsite, melanothallite, atlasovite, kamchatkite and secondary avdoninite, belloite and chalcanthite. Yaroshevskite forms isolated prismatic crystals...

..., aggregates up to 5 mm in size. Associated minerals are salammoniac, halite, chanabayaite, nitratine, and belloite. Bojarite is a copper triazolate mineral; its ideal formula is Cu3(N3C2H2)3(OH)[Cl2(H2O)4]·2H2O (Chukanov et al. 2020). BFdo 3jacr).itIetscerlyegstaanltliczreysstinal tshtreuccut ubriec...

.... , Kamiyama T. and Kawae T. ( 2018 ) Two-dimensional triangular-lattice Cu(OH)Cl, belloite, as a magnetodielectric system . Physical Review Materials , 2 , 104401 . The authors declare none...

...)Cl. Name : After Andrés Bello (1780–1865), founder and first rector of the Universidad de Chile, Santiago, Chile. Comments : IMA No. 1998–054. In the presence of water, belloite converts within minutes to botallackite and atacamite. The crystal structure of synthetic Cu(OH)Cl...

... ( Pollard et al ., 1983 ). Belloite, CuCl(OH), is a secondary mineral associated with paratacamite and rather unstable in humid environments; in an aqueous solution it transforms into botallackite and atacamite (Schlüter et al. , 2000). Finally, bobkingite, Cu 5 (OH) 8 Cl 2 ·2H 2 O, is similar...

..., their bond valences are ≥0.05 valence units ( vu ), and their inclusion into the Cu 2+ coordination sphere seems reasonable from the viewpoint of stereochemistry. A similar coordination polyhedron with composition CuO 3 Cl 3 has been observed in the structure of belloite, Cu(OH)Cl ( Iitaka et al . 1961...

...) Hawthorne and Sokolova (in press); (7) Hawthorne et al. (this work); (8) Williams (1963) ; (9) Burns et al. (1995) ; (10) Engberg (1970) Belloite CuCl(OH) 5.552(3) 6.668(2) 6.124(2) 115.00(3) P 2 1 / a (1) Atacamite Cu 2 Cl(OH) 3 6.030(2) 6.865(2) 9.120(2) – Pnma (2...