phenakite


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phenakite

[′fen·ə‚kīt]
(mineralogy)
Be2SiO4 A colorless, white, wine-yellow, pink, blue, or brown glassy mineral that crystallizes in the rhombohedral system; used as a minor gemstone. Also spelled phenacite.
References in periodicals archive ?
But really I'm bringing up the Paleini mine because I'm still regaining sensory equilibrium after viewing the extraordinary Paleini phenakite that Ohio collector Carolyn Manchester acquired at the show.
The American Museum of Natural History (New York) had a learned case on the clinopyroxenes, and the Smithsonian Institution showed a few new acquisitions including an unearthly fine, 4-cm, complete, transparent, colorless crystal of phenakite from Sugarloaf Mountain, New Hampshire, from the recently dispersed collection of Robert Whitmore (who, by the way, is still alive and well).
Relict crystals from the leaching phase and newly grown crystals of other species formed up to 10% of the pocket contents and could include siderite, fluorite, molybdenite, topaz, columbite-(Fe), rutile, pyrite, beryl, very rarely phenakite and other minerals.
The discovery of aquamarine was soon followed by the recognition of phenakite, bertrandite, fluorite and topaz from the Mount Antero and Mount White areas.
Phenakite was reported (but not described) from Alchuri by Bernard and Hyrsl (2004); however, it is unlikely to have been found there, considering the geology.
Antero (see the Tucson 2005 report), has leased a part of this famous collecting area and even now is pulling out phenakite specimens with individual crystals to 2.
1934) and PhD (1935) degrees by Harvard, on the basis of his studies on phenakite morphology and paragenesis with Goldschmidt.
In the late 19th and early 20th centuries, some of Switzerland's best phenakite crystals--colorless prisms to 3.
Associated collectable minerals including beryl (aquamarine), green fluorite, phenakite and bertrandite have also been found there.
Phenakite in its new incarnation--as gemmy, colorless or palest yellow prisms betraying penetration twinning on the terminations--from Momeik, Mogok, Myanmar (Burma) is also familiar enough by now not to need fresh verbiage, although, unlike the brookite from Pakistan, it is not common on the market.
Dolomite and phenakite have also been reported but have not been confirmed.
apatite, aquamarine, ashanite, bimushite, bismutomicrolite, chrysoberyl, *cygrayite, epidote, ertixiite, fluorite, garnet, hiddenite, holmquistite, ilmenite, ishikawaite, manganotantalite, manganocolumbite, molybdenite, muscovite, phenakite, pollucite, polylithionite, pyrite, *qingheite, samarskite, scheelite, sphalerite, spodumene, staurolite, topaz, tourmaline, trilithionite, uraninite, zircon Labashan Hubei turquoise Laiyuan Hebei hematite, ludwigite Lamo Guangxi, apatite, galena, pyrite, quartz, Zhuang A.