Emil Makovicky
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View article: New minerals auropolybasite, [Ag15AuSb2S11] and auropearceite, [Ag15AuAs2S11], and the implications for the formation of bonanza ores in epithermal systems
New minerals auropolybasite, [Ag15AuSb2S11] and auropearceite, [Ag15AuAs2S11], and the implications for the formation of bonanza ores in epithermal systems Open
The new minerals auropolybasite, ideally Ag15AuSb2S11 and auropearceite, ideally Ag15AuAs2S11, were found at the Šibeničný vrch near Nová Baňa in Slovakia. They were found as anhedral grains up to 0.2 mm in size, usually rimmed by acanthit…
View article: Dervillite from Jáchymov, Czech Republic: a non-harmonic approach to the refinement of atomic displacement parameters of silver
Dervillite from Jáchymov, Czech Republic: a non-harmonic approach to the refinement of atomic displacement parameters of silver Open
A rare silver mineral, dervillite (ideally Ag 2 AsS 2 ), has been found in specimens from the famous Jáchymov mining district, Czech Republic. It occurs as very rare long-prismatic crystals up to 0.4 mm across in association with proustite…
View article: Tomb towers and minarets: analysis of symmetries and geometries of Iranian geometrical ornaments of the Seljuq era. Pictorial requiem for the Kharraqan towers
Tomb towers and minarets: analysis of symmetries and geometries of Iranian geometrical ornaments of the Seljuq era. Pictorial requiem for the Kharraqan towers Open
Ornamental adornment of the Kharraqan tomb towers, the most outstanding funeral monuments of the Seljuk era in NW Iran, and those of four best-preserved Seljuq brick minarets in northern Iran, documents the artistic canon of the pre-glaze …
View article: On the homeotypes of kobellite
On the homeotypes of kobellite Open
Kobellite is a Pb-Bi-Sb sulfosalt with minor amounts of (Cu, Fe) and with the crystal structure composed of two types of rods, one of which has unusual lateral extensions (‘lobes’), which depart from the usual lozenge-shaped rod cross-sect…
View article: Quasicrystals and art: interesting new facts
Quasicrystals and art: interesting new facts Open
Quasiperiodic ornamental patterns represent only a small percentage of patterns when compared to the entire body of periodic patterns. Decagonal pattern is known since twelfth century Iran and fourteenth century western Islam (Andalusia an…
View article: Mineralogical Society of the UK and Ireland
Mineralogical Society of the UK and Ireland Open
Mineralogical Society of the UK and IrelandDuring the time when we had to pivot to online-only communications, we found new ways to communicate and new things to communicate about.Some of these continue to be developed and enhanced and wil…
View article: Mneralogy of the Vorontsovskoe gold deposit (Northern Urals)
Mneralogy of the Vorontsovskoe gold deposit (Northern Urals) Open
The Vorontsovskoe gold deposit (Northern Urals) is unique in both Russia and the world because of the diverse and original Tl–Hg–Mn–As–Sb–S mineralization. Based on the available literature and our data, we present a list of 210 minerals f…
View article: Stibiogoldfieldite, Cu<sub>12</sub>(Sb<sub>2</sub>Te<sub>2</sub>)S<sub>13</sub>, a new tetrahedrite-group mineral
Stibiogoldfieldite, Cu<sub>12</sub>(Sb<sub>2</sub>Te<sub>2</sub>)S<sub>13</sub>, a new tetrahedrite-group mineral Open
Stibiogoldfieldite, Cu 12 (Sb 2 Te 2 )S 13 , was approved as a new mineral species from the Mohawk mine, Goldfield mining district, Esmeralda County, Nevada, USA. It occurs as metallic anhedral grains, dark grey in colour. It is associated…
View article: Mineralogy of the Vorontsovskoe gold deposit (Northern Urals).Part 4: Oxysalts
Mineralogy of the Vorontsovskoe gold deposit (Northern Urals).Part 4: Oxysalts Open
This is a fnal paper in a series of publications devoted to the mineralogy of the Vorontsovskoe gold deposit in the Northern Urals. The article reports on oxygen compounds (oxyhalides, oxides, hydroxides, carbonates, sulfates, tungstates, …
View article: Unique Association of Sulphosalts from the Kľačianka Occurrence, Nízke Tatry Mts., Slovak Republic
Unique Association of Sulphosalts from the Kľačianka Occurrence, Nízke Tatry Mts., Slovak Republic Open
Unique association of sulphosalts was discovered at the Kľačianka occurrence, Nízke Tatry Mts., Slovak Republic. It is bound to thin hydrothermal veins with Sb mineralization hosted by the Variscan muscovite-biotite granodiorite and granit…
View article: Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 3: sulfosalts
Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 3: sulfosalts Open
This paper continues a series of publications devoted to the mineralogy of the Vorontsovskoe gold deposit in the Northern Urals (Kasatkin et al., 2020, 2021). The article reports on sulfosalts of the deposit, their chemical compositions, a…
View article: Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 2: native elements, sulfides, arsenides, tellurides
Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 2: native elements, sulfides, arsenides, tellurides Open
The paper continues a series of publications devoted to the mineralogy of the Vorontsovskoe gold deposit in the Northern Urals (Kasatkin et al., 2020). The paper reports on native elements, sulfdes, arsenides and tellurides discovered at t…
View article: Twinning of Tetrahedrite—OD Approach
Twinning of Tetrahedrite—OD Approach Open
The common twinning of tetrahedrite and tennantite can be described as an order–disorder (OD) phenomenon. The unit OD layer is a one-tetrahedron-thick (111) layer composed of six-member rings of tetrahedra, with gaps between them filled wi…
View article: Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia
Gladkovskyite, MnTlAs3S6, a new thallium sulfosalt from the Vorontsovskoe gold deposit, Northern Urals, Russia Open
Gladkovskyite (IMA2018-098), MnTlAs 3 S 6 , is a new sulfosalt from the Vorontsovskoe gold deposit, Sverdlovsk Oblast', Northern Urals, Russia.The new mineral occurs in limestone breccias cemented by abundant realgar, orpiment, baryte and …
View article: The tetrahedrite group: Nomenclature and classification
The tetrahedrite group: Nomenclature and classification Open
The classification of the tetrahedrite group minerals in keeping with the current IMA-accepted nomenclature rules is discussed. Tetrahedrite isotypes are cubic, with space group symmetry I43m. The general structural formula of minerals bel…
View article: Four-phase geothermobarometry on mantle xenoliths from West Greenland: assessment of P/T-formulations and implications for diamond potential
Four-phase geothermobarometry on mantle xenoliths from West Greenland: assessment of P/T-formulations and implications for diamond potential Open
In recent years the number of diamond finds from kimberlitic rocks (senso lato) (Nielsen and Sand, in press) in West Greenland has increased, resulting in a greater interest for the diamond potential of the region. Commercial size diamonds…
View article: Modular Crystal Chemistry of Thallium Sulfosalts
Modular Crystal Chemistry of Thallium Sulfosalts Open
Complex sulfides of thallium with As, Sb, or Bi and with other cations (‘thallium sulfosalts’) are a large group of crystal structures with extreme variability. Incorporation of the large Tl+ cation in them is solved in several different w…
View article: Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia
Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia Open
Tsygankoite, ideally Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, is a new sulfosalt discovered at the Vorontsovskoe gold deposit, Northern Urals, Russia. It occurs as lath-like elongated crystals up to 0.2 mm embedded in calcite–dolomite–clinochlore matri…
View article: Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)&Sigma;24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia
Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia Open
Tsygankoite, ideally Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, is a new sulfosalt discovered at the Vorontsovskoe gold deposit, Northern Urals, Russia. It occurs as lath-like elongated crystals up to 0.2 mm embedded in calcite-dolomite-clinochlore…
View article: Polloneite, a new complex Pb(-Ag)-As-Sb sulfosalt from the Pollone mine, Apuan Alps, Tuscany, Italy
Polloneite, a new complex Pb(-Ag)-As-Sb sulfosalt from the Pollone mine, Apuan Alps, Tuscany, Italy Open
Polloneite, ideally AgPb 46 As 26 Sb 23 S 120 , is a new N = 4 member of the sartorite homologous series. It occurs in a matrix of baryte from the Pizzone level of the Pollone baryte-pyrite-(Pb-Zn-Ag) deposit at Valdicastello Carducci, nea…
View article: Bohseite, ideally Ca<sub>4</sub>Be<sub>4</sub>Si<sub>9</sub>O<sub>24</sub>(OH<sub>4</sub>, from the Piława Górna quarry, the Góry Sowie Block, SW Poland
Bohseite, ideally Ca<sub>4</sub>Be<sub>4</sub>Si<sub>9</sub>O<sub>24</sub>(OH<sub>4</sub>, from the Piława Górna quarry, the Góry Sowie Block, SW Poland Open
Bohseite is an orthorhombic calcium beryllium aluminosilicate with variable Al content and an endmember formula Ca 4 Be 4 Si 9 O 24 (OH 4 ), that was discovered in the Piława Górna quarry in the eastern part of the Góry Sowie Block, ∼50 km…