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Corp Naomh
The Corp Naomh (, , en, Holy or Sacred Body) is an Irish bell shrine made in the 9th or 10th century to enclose a now-lost Handbell, hand-bell, which probably dated to and belonged to an List of saints of Ireland, early Irish saint. The shrine was rediscovered sometime before 1682 at Tristernagh Abbey, near Templecross, County Westmeath. The shrine is high and wide. It was heavily refurbished and added to during a second phase of embellishment in the 15th century, and now consists of Casting (metalworking), cast and Sheet metal, sheet bronze plates mounted on a wooden core decorated with silver, niello and Quartz, rock crystal. It is severely damaged with extensive losses and wear across almost all of its parts, and when discovered a block of wood had been substituted for the bell itself. The remaining elements are considered of high historical and artistic value by archeologists and art historians. Sections from its original, Early Middle Ages, early Medieval phase include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
