rutile needles

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• Rutile — Wine red rutile crystals from Binn Valley, Switzerland (Size: 2.0 x 1.6 x 0.8 cm) General Category Oxide minerals …   Wikipedia

• rutile — /rooh teel, tuyl/, n. a common mineral, titanium dioxide, TiO2, usually reddish brown in color with a brilliant metallic or adamantine luster, occurring in crystals: used to coat welding rods. [1795 1805; < F < G Rutil < L rutilus RED1] * * *… …   Universalium

• Ruby — This article is about the mineral. For other uses, see Ruby (disambiguation). Ruby Natural ruby crystals from Winza, Tanzania General Category …   Wikipedia

• Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category …   Wikipedia

• rutilated quartz — ˈrüd.əlˌād.ə̇d noun Etymology: rutile + ate + ed : quartz characterized by the presence of enclosed rutile needles compare sagenite …   Useful english dictionary

• Rose quartz — is a type of quartz which exhibits a pale pink to rose red hue. The color is usually considered as due to trace amounts of titanium, iron, or manganese, in the massive material. Some rose quartz contains microscopic rutile needles which produces… …   Wikipedia

• Star garnet — Star garnets are a special form of the gemstone garnet. While colored like other garnets (predominantly red though other colors exist) they display a reflection like image of a four or six pointed star caused by the inclusion of rutile needles,… …   Wikipedia

• almandine — /al meuhn deen , duyn , din/, n. a mineral, red iron aluminum garnet. [1670 80; < F, MF < ML alamandina, alabandina a precious stone, prob. a kind of garnet, equiv. to Alaband(a) a town in Asia Minor + ina, fem. of inus INE1; cf. ME alabaundaryne …   Universalium

• Diamond simulant — Due to its low cost and close visual likeness to diamond, cubic zirconia has remained the most gemologically and economically important diamond simulant since 1976. The high price of gem grade diamonds, as well as significant ethical concerns of… …   Wikipedia

• Verneuil process — The Verneuil process, also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in 1902 by the French chemist Auguste Verneuil. It is primarily used to produce the ruby and sapphire… …   Wikipedia

• love arrows — fine needles of rutile crystals embedded in quartz. Also called flèches d amour, Cupid s arrows. * * * …   Universalium