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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 ...
Talc, or talcum, is a clay mineral composed of hydrated magnesium silicate, with the chemical formula Mg3Si4O10(OH)2. Talc in powdered form, often combined with corn starch, is used as baby powder. This mineral is used as a thickening agent and lubricant. It is an ingredient in ceramics, paints, and roofing material.
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 ...
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 ...
Pumice is an igneous rock with a foamy appearance. The name is derived from the Latin word pumex (meaning "pumice") [13] which is related to the Latin word spuma meaning "foam". [14] In former times, pumice was called "Spuma Maris", meaning "froth of the sea" in Latin because the frothy material was thought to be hardened sea foam.
The skin and bones of the gods were believed to be made of gold. The Egyptians used yellow ochre extensively in tomb painting, though occasionally they used orpiment, which made a brilliant colour, but was highly toxic, since it was made with arsenic. In tomb paintings, men were always shown with brown faces, women with yellow ochre or gold faces.
The mural Westward the Course of Empire Takes Its Way was made using stereochromy. 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 ...
The modern study of mineralogy was founded on the principles of crystallographyand microscopicstudy of rock sections with the invention of the microscopein the 17th century. [2] Europe and the Middle East. [edit] Theophrastus. The ancient Greek writers Aristotle(384–322 BC) and Theophrastus(370–285 BC) were the first in the Western ...