The Charms of Women and Priests: Sex,Magic, Gender and Public Order in Late Medieval Italy

How did judicial authorities in late medieval Italy understand the relationship between gender, sexuality, social status, magic and public order, especially when magic was used to facilitate the crime of adultery? What might this reveal about the intersection of gender, magic and public order in a place and time so fraught with political and social tensions? This study qualitatively compares four love‐magic trials from fourteenth‐century Lucca and suggests that the anxieties underpinning these trials were both particular to late medieval Italian communes and projected onto two populations, women and priests, whose unchecked sexuality posed the greatest threat to civic order. Historians examining gender in medieval European magic trials have often treated judicial officials’ anxieties as portents of the ‘witch craze’ of early modern Europe. Historians of medieval Lucca have tended to treat the political and gender histories of the city as largely separate. This article suggests that the courts’ increasing regulation of gender and sexuality in late medieval Lucca reflected larger ecclesiastical and communal concerns about the dissolution of civic order. In a world of civic power that increasingly belonged to secular men, the unchecked sexuality of women and clergy represented a dual threat to the stability of the family and, by extension, the city. This article argues that secular and ecclesiastical judicial officials feared not magic itself, but the ability of magic to invert power relations between men and women and between clergy and laity, destroying public order.     

The history of gold therapy for tuberculosis

This is a historical study of the popularization of a medical therapy contrary to pertinent experimental findings. Presumably this circumstance reflects the desperation about tuberculosis: highly prevalent, highly fatal, and lacking any etiologically directed therapy. Gold compounds were introduced, based initially on the reputation of Robert Koch, who had found gold cyanide effective against M. tuberculosis in cultures, but not in experimentally infected animals. Treatment of pulmonary tuberculosis with these compounds was popularized, particularly by Danish physicians, in the mid-1920s, despite consistently negative experimental results, based on Paul Ehrlich's theories of antimicrobial drug effects. Difficulties in the design of interpretable clinical studies were soon recognized but also generally ignored, thus permitting data to be interpreted as favorable to antituberculous gold therapy. Eventually toxicity was considered to outweigh the alleged therapeutic benefit of all gold compounds. This resulted in their discard shortly before the introduction of streptomycin therapy.     

Geological setting, nature of ore fluids and sulphur isotope geochemistry of the Fu Ning Carlin-type gold deposits, Yunnan Province, China

Carlin‐type gold deposits in southern China are present in Palaeozoic to Mesozoic siliciclastic and carbonate rocks. The border region of Yunnan, Guizhou and Guangxi Provinces contains gold deposits on the south‐western margin of the Pre‐Cambrian South China Craton in south‐eastern Yunnan Province. The Fu Ning gold deposits host epigenetic, micron‐sized disseminated gold in: (i) Middle Devonian (D₁p) black carbonaceous mudstone at the Kuzhubao gold deposit and (ii) fault breccia zones at the contact between Triassic gabbro (β ) and the Devonian mudstone (D₁p) at the Bashishan gold deposit. The deposits are associated with zones of intense deformation with enhanced permeability and porosity that focused hydrothermal fluid flow, especially where low‐angle N‐S striking thrust faults are cut by NW striking strike‐slip and/or NE striking normal faults. Major sulphide ore minerals in the Fu Ning gold deposits are pyrite, arsenopyrite, arsenic‐rich pyrite, stibnite and minor iron‐poor sphalerite. Gangue minerals are quartz, sericite, calcite, ankerite and chlorite. Hypogene ore grades range from 1 to 7 g t^?1 Au and up to 18 g t^?1 Au at the Kuzhubao gold deposit and are generally less than 3 g t^?1 Au at the Bashishan gold deposit. Sub‐microscopic gold mineralization is associated with finely disseminated arsenic‐rich pyrite in the Stage III mineral assemblage. Two types of primary fluid inclusions have been recorded: Type I liquid–vapour inclusions with moderate‐to‐high liquid/vapour ratios, and Type II inclusions containing moderate liquid/vapour ratios with CO₂ as determined from laser Raman analysis. Temperature of homogenization (T_h) data collected from these primary fluid inclusions in gold‐ore Stage III quartz ranged from 180 to 275°C at the Kuzhubao gold deposit and 210 to 330°C at the Bashishan gold deposit. Salinity results indicate that there were possibly two fluids present during gold deposition, including: (i) an early fluid with 0.8–6.5 wt.% NaCl equivalent, similar to salinity in shear‐zone‐hosted gold deposits with metamorphic derived fluids; and (ii) a late fluid with 11.8–13.4 wt.% NaCl equivalent, indicating possible derivation from connate waters and/or brine sources. CO₂ and trace CH₄ were only detected by laser Raman spectrometry in gold‐ore‐stage primary fluid inclusions. Results of sulphur isotope studies showed that δ³⁴S values for pyrite and arsenopyrite associated with gold‐ore mineralization during Stage III at the Kuzhubao and Bashishan gold deposits are isotopically similar and moderately heavy with a range from +9 to +15 per mil, and also fall into the range of δ³⁴S values reported for Carlin‐type gold deposits. Sulphur isotopes suggest that the Fu Ning gold deposits were formed from connate waters and/or basinal brines. Fluid geochemistry data from the Fu Ning gold deposits suggest a Carlin‐type genetic model, involving fluid mixing between: (i) deep CO₂‐rich metamorphic fluids, (ii) moderately saline, reduced connate waters and/or basinal brines; and (iii) evolved meteoric waters.     

Trace element fingerprinting of ancient Chinese gold with femtosecond laser ablation-inductively coupled mass spectrometry

In this collaborative investigation, femtosecond laser ablation-inductively coupled mass spectrometry (LA-ICP-MS) was applied to the study of a remarkable group of ancient Chinese gold objects in the Smithsonian's Freer Gallery of Art and Arthur M. Sackler Gallery. Taking advantage of the superior ablation characteristics and high precision of a femtosecond 266 nm Ti:sapphire laser at Lawrence Berkeley National Laboratory, major, minor and trace element concentrations in the gold fragments were quantified. Results validate use of femtosecond LA-ICP-MS for revealing “fingerprints” in minute gold samples. These fingerprints allow us to establish patterns based on the association of silver, palladium and platinum that support historical, technical and stylistic relationships, and shed new light on these ancient objects.     

Alien coins and foreign exchange banking in a medieval commune: Thirteenth-century Lucca

The tithing returns sent to Rome in 1296 from the dioceses of Tuscany reveal a variety of coins, foreign to each particular episcopate, included in the mix. This article deals with the presence, and presumably prior circulation, of coins of foreign provenence in thirteenth-century Lucca as indicated in the Lucchese notarial materials of the period. The results are analyzed and then compared with the representation of the types of coins included in Lucca's 1296 tithe, and explanations set forth as to why certain coins, e.g. the gros tournois, should be conspicuously under-represented in comparison with other Tuscan dioceses while the Venetian groat was over-represented. It is further argued that the determining factor for the lack or abundance of certain alien coins in Lucca turns on the availability or absence of routine mechanisms for the transfer of obligations abroad through foreign exchange banking which obviated the need for significant shipments of physical specie or bullion.     

The examination of a pre-hispanic gold chisel from Colombia

A Pre-hispanic gold chisel from Colombia was examined by metallography, atomic absorption spectrophotometry, electron probe microanalysis, and microhardness methods. The chisel was found to be worked to shape with a ground cutting edge, and made in a gold-copper (tumbaga) alloy. Silver was present in the gold used to make the alloy. The results of the examination are discussed with a brief resumé of what is known about the composition and manufacture of these small tools in ancient Colombia.     

山东日照海曲汉代夹纻胎漆器金银装饰工艺浅析

为了更好地探讨出土汉代夹纻胎漆器的金银装饰工艺,本研究运用显微镜等仪器,对山东日照海曲汉代墓地出土几件夹纻胎漆器的金银装饰工艺进行分析研究。研究发现:金饰片多镶嵌在漆灰层上的漆膜层中,银饰片和银构件多镶嵌在漆膜及漆灰层中;在金银饰与漆膜接界处有出于保护目的,且与周围图案相协调的描饰;金银装饰上的描饰与其周围的描饰图案融为一体。夹纻胎漆器的金银装饰工艺因金银饰件面,与漆膜层面高低,分为"粘贴"和"镶嵌"两类,本研究样品中暂未发现粘贴工艺。结合现代漆器装饰工艺调查结果,初步探讨了几件夹纻胎漆器金银的镶嵌工艺流程。本研究可利于汉代夹纻胎漆器金银装饰工艺的发掘、利用与传承。     

Medieval phases of settlement at Benabbio castle,Apennine mountains,Italy: evidence from Ground Penetrating Radar survey

The lack of written sources for many of the medieval castles in the northern Apennines (Italy) makes it difficult to completely establish the most ancient historical phases of these settlements. The church of San Michele belongs to an abandoned fortified settlement of the Castle of Benabbio, in the mountains surrounding Lucca. Thanks to an epigraph still visible on the façade, the church foundation is dated back to AD 1218. However, several archaeological findings at the settlement seem to suggest stages of encastlement that are older than the church foundation.     

The technology of early platinum plating: a gold mask of the La Tolita culture,Ecuador

A metallurgical study of platinum plating on a gold pendant of the La Tolita culture of northern Ecuador was carried out, using high‐magnification examination by scanning electron microscopy with analytical facilities. The plating layer was found to comprise a 25 µm thick foil of platinum grains sintered with a gold–silver alloy. The high silver content of this alloy suggests the deliberate selection of pale‐coloured, silver‐rich alluvial gold. The foil had been bonded on to the pre‐formed gold sheet by hammering and heating. It is postulated that a strip of gold sheet was plated by this method and that several pendants were cut from it.     

Hybrid territorialisation: A reconfiguration of rural spaces through gold mining in Upper Guinea

In this article, our aim is to analyse the process of territorialisation in the region of Upper Guinea following the rapid increase in gold mining exploitation since the 2000s. Territorialisation is analysed as a new way of doing space and creating boundaries in an area where boundaries have historically been negotiable and where artisanal and small-scale mining is plurisecular and gives rise to ephemeral spaces. Our first objective is to retrace changes in gold mining activities and spaces over the last decade, and to analyse the expansion of the mining industry as an extractive territorialisation, involving processes that lead to the fixation of the gold diggers’ mobility. Secondly, this article shows how this extractive territorialisation can in fact be analysed as a hybrid one, since it seems to lay the groundwork for state territorial control: first, it formalises spaces linked to and surrounding the exploitation area; second, it seems to correlate to a more general tendency of appropriation under the territorial model by local communities. Territorialisation, understood as both a political and a spatial process, serves thus as a starting point for the analysis of space formalisation in a peripheral region where the state is often seen by locals as mainly absent.     

A Bronze Age gold torc from Sudbrook, Lincs.

An important find of a Bronze Age gold bar-torc from Sudbrook, Lincs. is described. Study of its closer parallels suggests that it belongs to a sub-group of the much larger family of bar-torcs known from Britain, Ireland and France during the Middle to later Bronze Age.     

Numerical simulation of mylonitization and structural controls on fluid flow and mineralization of the Hetai gold deposit,west Guangdong,China

The Hetai gold deposit (HGD) is a typical altered mylonite type gold mine in a ductile shear zone in western Guangdong, China. Geomechanical simulations of the HGD were carried out in this paper to examine the importance of the dilation‐driven fluid circulation in gold mineralization. The results show that three evenly‐spaced NNE shear zones of enhanced dilation are produced in the study area. The calculated principal compressive stress in the X direction in these zones ranges between ?420 and ?650 MPa, in line with estimates of ore‐forming pressure (fluid pressure). Ore forming fluid is focused into these features, as observed in the field. The calculated differential stress decreases from 275~350 to 148~225 MPa during the formation of mylonite zones. These, together with geological structural analysis and fluid pressure measurements, indicate that the mylonitization zone can provide a place of fluid focusing and a favorable environment for gold mineralization.     

The palaeo-Christian glass mosaic of St. Prosdocimus (Padova,Italy): archaeometric characterisation of ‘gold’ tesserae

A systematic and extensive archaeometric study was carried out on the loose polychrome tesserae of the palaeo-Christian glass mosaic which decorated the votive chapel of St. Prosdocimus in Padova until its replacement by the current frescoes of Renaissance age and which is one of the only two known in the Veneto region (Italy). In particular, the present paper focuses on the ‘gold’ tesserae, i.e., tesserae with a metal foil, usually composed of gold, and characterised by transparent glass not deliberately coloured or decolourised. The main research aims were the identification of the ‘base composition’ of the glass used for mosaics and the reconstruction of production techniques. In addition, comparisons with major compositional groups identified in the literature allowed us to contextualise Paduan ‘gold’ tesserae in the wider context of glass production in the 6th century AD. The compositional characterisation of Paduan ‘gold’ tesserae, carried out by means of EMPA and LA-ICP-MS analyses, showed that most of the glass samples were obtained with natron as flux, although the coexistence of various production technologies and the extent of recycling, which confirm the 6th century AD as a period of technological transition, are documented. Identification of some soda ash tesserae also allowed us to attest Medieval restoration operations. The good match between compositional groups identified in the literature for glass vessels and compositional groups identified in the ‘gold’ tesserae suggests technological links between these two production types. The chemical similarity between ‘gold’ tesserae from Ravenna and some from Padova also links production technologies in these two towns during the 6th century; coupled with the results of the historical-artistic study, these factors provide further evidence to the hypothesis that the Paduan production was mainly influenced by the nearby city of Ravenna, the capital of Byzantine mosaics in Italy.     

Simulation of adsorption of gold nanoparticles carried by gas ascending from the Earth’s interior in alluvial cover of the middle–lower reaches of the Yangtze River

The adsorption onto other minerals of charged gold nanoparticles, carried by gas ascending from the Earth’s interior, is an important component of their transport and deposition in surficial cover such as alluvial, aeolian, and glacial sediments. To simulate the adsorption of these particles, an experiment was conducted in which a flow of air that contained gold nanoparticles was passed upward through a sample of alluvium from the middle–lower reaches of the Yangtze River. These experiments showed that gold nanoparticles are adsorbed on kaolinite, halloysite, goethite, and hematite in the alluvial cover. Both the gold nanoparticles and minerals (i.e., kaolinite, halloysite, goethite, and hematite) carry surface charges that provide them with excellent adsorption properties. This study showed that the specific mineral composition of surficial alluvial cover affects the concentration of gold nanoparticles in the ascending gas. This phenomenon may plausibly be used in exploration for concealed gold, copper–gold, and silver–gold deposits in areas of thick alluvial cover. Geofluids (2010) 10 , 438–446     

Cornish tin-streamers and the Australian gold rush: technology transfer in alluvial mining

Abstract

The Cornish are known around the world for their mining skills. In the 19th century the migration of Cornish mining families created a diasporic community with settlements in the United States, Mexico, South Africa and Australia centred on copper, tin and gold mines. While the Cornish are generally associated with underground mining, recent research in Australia suggests that ancient methods for working surface tin deposits played an important role during the gold rush. The identification of Cornish tin-streaming as the source of alluvial mining technology in Australia sheds light on a little-documented branch of mining that has played a significant role in shaping the landscape of goldfields regions.     

Glass and metal analyses of gold leaf tesserae from 1st to 9th century mosaics. A contribution to technological and chronological knowledge

An archaeometric study was carried out on 40 gold leaf tesserae from mosaics in Italy dated 1st to the 9th century AD. Glass layers and gold leaf were both analysed by X-ray microanalysis. The main aim was the identification of the composition of the glass and of the gold leaf, in order to assess the variations in composition and nature of the tesserae in the examined period.     

Three-dimensional geometry, ore distribution and time-integrated mass transfer through the quartz–tourmaline–gold vein network of the Sigma deposit (Abitibi belt, Canada)

We present a reconstruction of the three‐dimensional (3D) geometry and gold grade distribution of shear zone‐hosted, Au‐mineralized, quartz–tourmaline veins of the Sigma deposit (Abitibi belt). Host shears and veins form a network of anastomosing, steeply dipping structures associated with smaller subhorizontal extensional veins. Our reconstruction has been carried out using the exceptionally large geological database of the mine. From this database, we extracted the geometric position, thickness and gold grades of geometrically best‐defined steep veins contained in a representative subvolume of the deposit. These data allowed the 3D representation of 53 veins, which have been constructed by fitting surfaces through the geometrical data and by contouring thickness and gold grade. The geometry of the network is mainly characterized by: (i) a few large segmented veins, with sinuous and helicoidal shape, and typical vertical dimension of >100 m; (ii) a large number of smaller vertical veins, some of which splay off the steep veins with high dip angles; (iii) subhorizontal extension veins (joints) located at, or close to, the tips of steep veins. The absolute thickness of the vertically short veins is the same as that of the large veins, suggesting that they formed simultaneously, but only a few of them interconnect to form vertically continuous bodies. Patchy, vertically elongated zones of high dilation are present in the large veins, and are poorly correlated with Au‐rich zones. They presumably represent former high‐permeability zones of the network. The highest gold grades occur at the interconnections between the large veins and small splays or subhorizontal joints. This indicates the important role of vein interconnection for fluid flow and gold precipitation within the network. Combining the calculation of the volume of the network with the estimation of tourmaline abundance in the veins, we calculate that 2.1 × 10⁶ m³ of tourmaline and 3.2 × 10⁶ m³ of quartz precipitated during Au deposition.