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Decoupage or découpage ( / ˌdeɪkuːˈpɑːʒ /; [1] French: [dekupaʒ]) is the art of decorating an object by gluing colored paper cutouts onto it in combination with special paint effects, gold leaf, and other decorative elements. Commonly, an object like a small box or an item of furniture is covered by cutouts from magazines or from ...
Geode. A geode ( / ˈdʒiː.oʊd /; from Ancient Greek γεώδης (geṓdēs) 'earthlike') is a geological secondary formation within sedimentary and volcanic rocks. Geodes are hollow, vaguely spherical rocks, in which masses of mineral matter (which may include crystals) are secluded. The crystals are formed by the filling of vesicles in ...
Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur ...
Mineral painting or Keim's process, also known as stereochromy, is a mural or fresco painting technique that uses a water glass -based paint to maximize the lifetime of the finished work. The name "stereochromy" was first used in about 1825 by Johann Nepomuk von Fuchs and Schlotthaurer. [1] In the original technique, pigments were applied to ...
Hardstone carving, in art history and archaeology, is the artistic carving of semi-precious stones (and sometimes gemstones ), such as jade, rock crystal (clear quartz ), agate, onyx, jasper, serpentinite, or carnelian, and for objects made in this way. [1] [2] Normally the objects are small, and the category overlaps with both jewellery and ...
Typical cup and ring marks at Weetwood Moor, in the English county of Northumberland (Google Maps). Cup and ring marks or cup marks are a form of prehistoric art found in the Atlantic seaboard of Europe (Ireland, Wales, Northern England, Scotland, France (), Portugal, and Spain – and in Mediterranean Europe – Italy (in Alpine valleys and Sardinia), Azerbaijan and Greece (Thessaly [citation ...
An amethyst geode that formed when large crystals grew in open spaces inside the rock. The largest amethyst geode found as of 2007 was the Empress of Uruguay, found in Artigas, Uruguay in 2007. It stands at a height of 3.27 meters, lies open along its length, and weighs 2.5 tons. Amethyst is also found and mined in South Korea. [19]
Rock crystal trade. Rock crystal is a transparent variety of hyaline quartz that was coveted throughout the Muslim world for its aesthetic appeal as well as its supposed magical properties, and therefore was a valuable trade item. Rock crystal fragments and blocks have been found throughout Dembeni, indicating the settlement was participating ...