yielding clay
81Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury …
82Opium — For other uses, see Opium (disambiguation). Opium Opium poppy fruit exuding latex from a cut Botanical Opium Source plant(s) Papaver somnifer …
83Sapphire — For other uses, see Sapphire (disambiguation). Sapphire The 423 carat (85 g) blue Logan sapphire General Category Oxide mineral …
84Calcium carbonate — Calcium carbonate …
85Reinforced concrete — is concrete in which reinforcement bars ( rebars ), reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867.[1] The term… …
86Pinot noir — Noirien redirects here. For a French wine grape that is also known as Noirien, see Négrette. Pinot noir Pinot noir grapes at Chehalem Ridgecrest Vineyard, Newberg, Oregon Colour Black Also called …
87Ethylene oxide — Oxirane redirects here. For oxiranes as a class of molecules, see epoxide. Ethylene oxide …
88Unusual types of gramophone records — The overwhelming majority of records manufactured have been of certain sizes (7, 10, or 12 inches), playback speeds (33⅓, 45, or 78 RPM), and appearance (round black discs). However, since the commercial adoption of the gramophone record, a… …
89German wine — Steep vineyards on Rüdesheimer Berg overlooking river Rhine. These vineyards are located in the southwestern part of the region Rheingau at a bend in the river. These vineyards are planted with Riesling grapes, with some Spätburgunder (Pinot… …
90Gray Fossil Site — The Gray Fossil Site is a Late Miocene epoch assemblage of fossils located near the unincorporated town of Gray in Washington County, Northeast Tennessee, and dates back 4.5 to 7 million years BCE). The Gray Fossil Site was discovered by… …
