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Onyx: Typically black-and-white-banded or monochromatic agate: Semi-translucent to opaque Cryptocrystalline Jasper: Impure chalcedony or chert, typically red to brown but the name is often used for other colors: Opaque Cryptocrystalline or Microcrystalline Milky quartz: White, may display diasterism: Translucent to opaque Macrocrystalline Smoky ...
Calcite. Manganoan calcite (var.); Caledonite; Canasite; Cancrinite. Vishnevite; Carletonite; Carnallite; Cassiterite; Catapleiite; Cavansite; Celestite; Ceruleite ...
Onycha is a play on the word onyx which was a gem. The onyx most esteemed by the ancients was the black gem. [30] The Hebrew word for onyx was shoham and “Braun traces shoham to the Arabic sachma,'blackness:' 'Of such a color,' says he, 'are the Arabian [onyxes], which have a black ground-color.'
An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color and results in a more attractive display than a lighter potch.
Other members of the cryptocrystalline silica family include agate, carnelian, and onyx. Unlike many non-transparent silica minerals, it is the color of chrysoprase, rather than any pattern of markings, that makes it desirable. The word chrysoprase comes from the Greek χρυσός chrysos meaning 'gold' and πράσινον prasinon, meaning ...
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Black Onyx Onyx. Onyx - Hebrew שֹׁהַם shoham, Greek ὀνύχινος onychinos, Latin lapis onychinus. The eleventh stone of the breastplate in the Hebrew and the Vulgate (Exodus 28:20, 39:13), representing the tribe of Joseph. In the Septuagint it is the twelfth stone and the fifth in Ezekiel 28:13 in the Hebrew, but the twelfth ...
Onyx International Inc, a company producing the Onyx Boox ebook readers; Onyx (satellite), a code name often associated with newer variants of the Lacrosse satellite; Onyx (interception system), a Swiss intelligence gathering system; Onyx-015, an adenovirus being researched for cancer treatment