Asteriated sapphire — Sapphire Sap phire (? or ?; 277), n. [OE. saphir, F. saphir, L. sapphirus, Gr. ?, of Oriental origin; cf. Heb. sapp[=i]r.] 1. (Min.) Native alumina or aluminium sesquioxide, {Al2O3}; corundum; esp., the blue transparent variety of corundum,… … The Collaborative International Dictionary of English
star ruby — noun : an asteriated variety of ruby … Useful english dictionary
звёздчатый рубин — — [Англо русский геммологический словарь. Красноярск, КрасБерри. 2007.] Тематики геммология и ювелирное производство EN asteriated ruby … Справочник технического переводчика
Corundum — General Category Oxide mineral – Hematite group Chemical formula Alumi … Wikipedia
Asterism (gemmology) — This article is about the characteristic in some gems. For other uses, see Asterism (disambiguation). Asterism on the surface of a blue star sapphire. This is the 182 carat (36.4 g) Star of Bombay, housed in the National Museum of Natural History … Wikipedia
Al2O3 — Sapphire Sap phire (? or ?; 277), n. [OE. saphir, F. saphir, L. sapphirus, Gr. ?, of Oriental origin; cf. Heb. sapp[=i]r.] 1. (Min.) Native alumina or aluminium sesquioxide, {Al2O3}; corundum; esp., the blue transparent variety of corundum,… … The Collaborative International Dictionary of English
Sapphire — Sap phire (? or ?; 277), n. [OE. saphir, F. saphir, L. sapphirus, Gr. ?, of Oriental origin; cf. Heb. sapp[=i]r.] 1. (Min.) Native alumina or aluminium sesquioxide, {Al2O3}; corundum; esp., the blue transparent variety of corundum, highly prized… … The Collaborative International Dictionary of English
Star sapphire — Sapphire Sap phire (? or ?; 277), n. [OE. saphir, F. saphir, L. sapphirus, Gr. ?, of Oriental origin; cf. Heb. sapp[=i]r.] 1. (Min.) Native alumina or aluminium sesquioxide, {Al2O3}; corundum; esp., the blue transparent variety of corundum,… … The Collaborative International Dictionary of English
Star stone — Asteria, or star stone (from Gr. do rip, star ), is a name applied to such ornamental stones as exhibit when cut en cabochon a luminous star. The typical asteria is the star sapphire, generally a bluish grey corundum, milky or opalescent, star of … Wikipedia
M. H. de Young — and the San Francisco Chronicle in 1885 Michael Henry de Young (September 30, 1849 – February 15, 1925) was an American journalist and businessman. Contents 1 Life and car … Wikipedia
cabochon cut — method of cutting gemstones with a convex, rounded surface that is polished but unfaceted. Opaque, asteriated, iridescent, opalescent, or chatoyant stones are usually cut en cabochon. The back of a normal cabochon cut stone is flat, but it… … Universalium