Calcareous+tufa
41calc-spar — Calcite Cal cite (k[a^]l s[imac]t), n. [L. calx, calcis, lime.] (Min.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble.… …
42Travertine — is a sedimentary rock. It is a natural chemical precipitate of carbonate minerals; typically Aragonite, but often recrystallized to or primarily Calcite. Basically, calcium carbonate is deposited from the water of mineral springs or rivulets… …
43Italy — • In ancient times Italy had several other names: it was called Saturnia, in honour of Saturn; Enotria, wine producing land; Ausonia, land of the Ausonians; Hesperia, land to the west (of Greece); Tyrrhenia, etc. The name Italy, which seems to… …
44Limestone — For other uses, see Limestone (disambiguation). Limestone Sedimentary Rock Limestone in Waitomo District, New Zealand Composition …
45calc- — 1. a combining form of calcareous: calc tufa. 2. var. of calci before a vowel: calcic. [ < G Kalk lime < L calc (s. of calx) lime, limestone; see CALX, CHALK] * * * …
46calcite — calcitic /kal sit ik/, adj. /kal suyt/, n. one of the commonest minerals, calcium carbonate, CaCO3, found in a great variety of crystalline forms: a major constituent of limestone, marble, and chalk; calc spar. [1840 50; CALC + ITE1] * * * Most… …
47tophus — tophaceous /teuh fay sheuhs/, adj. /toh feuhs/, n., pl. tophi / fuy/. Pathol. a calcareous concretion formed in the soft tissue about a joint, in the pinna of the ear, etc., esp. in gout; a gouty deposit. [1545 55; < L tophus, tofus TUFA] * * * …
48Tophus — A nodular mass of uric acid crystals. Tophi are characteristically deposited in different soft tissue areas of the body in gout. The word tophus comes via Latin from the Greek tophos meaning a porous volcanic stone. In chronic (tophaceous) gout,… …
49tophus — to•phus [[t]ˈtoʊ fəs[/t]] n. pl. phi ( fī). pat a calcareous concretion formed in the soft tissue about a joint, in the pinna of the ear, etc., esp. in gout • Etymology: 1545–55; < L tōphus, tōfus tufa to•pha•ceous təˈfeɪ ʃəs adj …
