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A stoup from brown Slivenec marble in the church in Dobřichovice [2]. Český Šternberk marble (šternberský mramor) from Český Šternberk, Benešov District: white ...
Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO 3) or dolomite (CaMg(CO 3) 2) that have recrystallized under the influence of heat and pressure. [1]
Quartzite is a decorative stone and may be used to cover walls, as roofing tiles, as flooring, and stairsteps. Its use for countertops in kitchens is expanding rapidly. It is harder and more resistant to stains than granite. Crushed quartzite is sometimes used in road construction. [2]
Carrara marble has been used since the time of Ancient Rome, when it was called marmor lunense, or "Luni marble". [2] [3]In the Middle Ages, most of the quarries were owned by the Marquis Malaspina who in turn rented them to families of Carrara masters who managed both the extraction and transport of the precious material.
Quartz is, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. [10] Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation ...
Granite Mountain is composed of Paleoproterozoic biotite granodiorite to granite that is known by geologist as the Mint Wash Granodiorite. [5] [6] The Mint Wash Granodiorite consists of medium to coarse-grained, weakly to strongly porphyritic granite with phenocrysts of gray to pink potassium feldspar up to 3 cm (1.2 in) in length and as much as eight percent biotite that is less than 8 mm (0. ...
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