goyazite

goyazite

[′gȯi·ə‚zīt]
(mineralogy)
SrAl3(PO4)2(OH)5·H2O A granular, yellowish-white mineral composed of a hydrous strontium aluminum phosphate.
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In 1977 he reopened the now-famous Sweet Home mine in Alma, Colorado to mine specimen rhodochrosite, hubnerite, fluorite, svanbergite and goyazite crystals.
To top it off, the Tysons offered a handful of fine thumbnail wardite specimens, with sharp, lustrous, pale blue-green pseudo-octahedral wardite crystals to 1.5 cm associated with white microcrystals of goyazite; and they offered a few exceptional clusters of glassy pale green augelite crystals, and sprays of dark blue-green acicular gormanite as well.
Albite Arsenopyrite Azurite Beryl Biotite Bismuth Calcite Cassiterite Chalcopyrite Danburite Dravite Ferberite Ferro-axinite Fluorapatite Fluorite Garnet (almandine?) Goethite Goyazite Hematite Malachite Molybdenite Monazite Muscovite Opal variety hyalite Plumbogummite Pyrite Quartz Rutile Scheelite Schorl Scorodite Titanite Topaz Table 5.
Associated minerals are: goyazite, "apatite," siderite, quartz, calcite, marcasite, pyrrhotite and pyrite.
Other minerals encountered at Brumado include: talc, goyazite, svanbergite, chernotive-(Y), wakefieldite-(Y), florencite-(Ce), anhydrite, celestite, barite and numerous other species.
Kosnar purchased back many Sweet Home specimens from high-graders, including 1-cm tetrahedrite crystals, ruby-red hubnerite crystals, twinned stromeyerite, and good crystals of goyazite, svanbergite and fluorite (Bancroft, 1984).
Goyazite Sr[Al.sub.3][(P[O.sub.4]).sub.2][(OH).sub.5] [multiplied by] [H.sub.2]O
Among the more unusual minerals they found was a bonanza of goyazite crystals (2-4 mm) with steep rhombohedral form, a habit nearly unique to Greenwood.
These crystals were originally thought to be the related species goyazite, but chemical analysis has refined the identification to florencite-(Ce).
Goyazite was observed on a single specimen as microscopic, pale, yellowish tan crystals as much as 1 mm in size, interstitial to small, prismatic quartz crystals.