yellow-colored zircon

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• Zircon — Not to be confused with zirconia or cubic zirconia. This article is about the mineral. For other uses, see Zircon (disambiguation). Zircon Zircon crystal from Tocantins, Brazil (2×2 cm) …   Wikipedia

• 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

• List of English words of Persian origin — As Indo European languages, English and Persian have many words of common Proto Indo European origin, and many of these cognate words often have similar forms. Examples of these include: English (Mother) and Persian (Madar), English (Father) and… …   Wikipedia

• Cubic zirconia — A round brilliant cut cubic zirconia Cubic zirconia (or CZ) is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically flawless and usually colorless, but may be made in a variety of different colors.… …   Wikipedia

• Jargoon — A Jargoon or jargon (occasionally in old writings jargounce and jacounce) is name applied by gemologists to those zircons which are fine enough to be cut as gemstones, but are not of the red color which characterizes the hyacinth or jacinth. The… …   Wikipedia

• Body piercing materials — In modern Western body piercing, a wide variety of materials are used. Some cannot be autoclaved, and others are may induce allergic reactions, or harbour bacteria. Certain countries, such as those belonging to the EU, have legal regulations… …   Wikipedia

• Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… …   Wikipedia

• Mount Pleasant Caldera — Elevation approx. 248 m (814 ft) Listing List of volcanoes in Canada …   Wikipedia

• Garnet — For other uses, see Garnet (disambiguation). Garnet General Category Nesosilicate Chemical …   Wikipedia

• Grossular — dodecahedron, .7 cm across, from Coahuila, Mexico General Category Nesosilicate …   Wikipedia