blue tourmaline

См. также в других словарях:

• Tourmaline — Schorl Tourmaline General Category Cyclosilicate Chemical formula (Ca,K,Na,[ …   Wikipedia

• Tourmaline — Tour ma*line, n. [F. tourmaline, cf. It. turmalina, tormalina, NL. turmalina, turmalinus; all fr. tournamal, a name given to this stone in Ceylon.] (Min.) A mineral occurring usually in three sided or six sided prisms terminated by rhombohedral… …   The Collaborative International Dictionary of English

• tourmaline — tourmalinic /toor meuh lin ik/, adj. /toor meuh lin, leen /, n. any of a group of silicate minerals of complex composition, containing boron, aluminum, etc., usually black but having various colored, transparent varieties used as gems. Also,… …   Universalium

• tourmaline — /ˈtɔməlin/ (say tawmuhleen) noun a mineral, essentially a complex silicate containing boron, aluminium, sodium, lithium, magnesium and iron, occurring in various colours (black being common); the transparent varieties (red, pink, green and blue)… …  

• tourmaline —   n. kind of black, blue, red and green silicate cut as gem …   Dictionary of difficult words

• paraiba tourmaline — noun A bright, gemstone with blue to green tones …   Wiktionary

• Brazilian sapphire — blue tourmaline …   Eponyms, nicknames, and geographical games

• indicolite — n. (Min.) Indigolite, blue tourmaline, blue shorl …   New dictionary of synonyms

• indigolite — n. (Min.) Indicolite, blue tourmaline, blue shorl …   New dictionary of synonyms

• Quartz-porphyry — Quartz porphyry, in petrology, is the name given to a group of hemi crystalline acid rocks containing porphyritic crystals of quartz in a fine grained matrix, usually of micro crystalline or felsitic structure. In specimens, the quartz appears as …   Wikipedia

• indicolite — /in dik euh luyt /, n. Mineral. a dark blue tourmaline, used as a gem. [1800 10; < F; see INDIGO, LITE] * * * …   Universalium