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a rock or particular piece or kind of rock, as a boulder or piece of agate. a piece of rock quarried and worked into a specific size and shape for a particular purpose: building stone. paving stone; building stone. a small piece of rock, as a pebble. precious stone.
GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research.
stone. material. Also known as: building stone. Learn about this topic in these articles: Assorted References. conservation and restoration. In art conservation and restoration: Stone sculpture. With examples dating back to the enormous prehistoric statues of Easter Island, many types of stone have been employed over the centuries in sculpture.
A stone is a piece of rock. It is a mass of hard, compacted mineral. The word is often used to mean a small piece of rock. The word "stone" also refers to natural rock as a material, especially a building material. Natural stones used as building material include granite, marble and sandstone.
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. Green Gemstones - emerald, peridot, jade, tsavorite, chrome diopside, chrysoprase, more. Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
noun. us / stoʊn / uk / stəʊn / stone noun (ROCK) Add to word list. B1 [ C or U ] the hard, solid substance found in the ground that is often used for building, or a piece of this: a stone wall / floor. a flight of stone steps. a primitive stone ax. They cut enormous blocks of stone out of the hillside.
noun. /stəʊn/ Idioms. hard substance. [uncountable] (often used before nouns or in compounds) a hard solid mineral substance that is found in the ground, often used for building. Most of the houses are built of stone. stone walls. a stone floor/bridge/carving/pillar/slab. a brick and stone building. a flight of stone steps. a huge block of stone.
