White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA

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Fergusonite-(Y) : YNbO₄
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Sub-parallel aggregate of crystals; 3.5x2.2x2.1cm; A very rare and superb specimen from this locality. Collected by Rudy Bolona; May 10, 2008.
	Photo ID: 165485 View Count: 164
Fergusonite-(Y) : YNbO₄
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Brownish-black massive piece with greasy luster; 2x1.7x1.1cm; fergusonite is quite scarce now from here, as most of the zone has been removed in past mining. Specimen collected by Rudy Bolona.
	Photo ID: 142446 View Count: 116
Fluorite : CaF₂
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Purple fluorite sample typical of material from this district; 5.8x4x1.7cm; Specimen collected by Rudy Bolona.
	Photo ID: 142456 View Count: 89
Gadolinite
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Black lustrous section in quartz matrix with red rare earth carbonate alterations around gadolinite; 2.8x2.1x1.2cm; Specimen purchased from a Colorado dealer.
	Photo ID: 142448 View Count: 146
Gadolinite
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Lustous black sections on quartz matrix; 5.8x3.5x2cm; Specimen collected by Rudy Bolona; Sept. 2007.
	Photo ID: 142455 View Count: 125
Gadolinite
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA 40 x 23 mm specimen of lustrous platy black-brown gadolinite on matrix. RFCM1342.
© 2009 Michael C. Roarke	Photo ID: 225302 View Count: 42
Gadolinite-(Ce) : (Ce,La,Nd,Y)₂Fe²⁺Be₂[O\|SiO₄]₂
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA This specimen of gadolinite was collected from the White Cloud Pegmatite in Colorado on 11/2008. It measures appx 2" x 1.5" x 1".
	Photo ID: 197629 View Count: 108
Muscovite : KAl₂[(OH)₂\|AlSi₃O₁₀]
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA This is a small cluster of green muscovite in microcline from the White Cloud Pegmatite in Colorado. It measures 3mm x 4mm. There are numerous small clusters in the eastern outcropping of the pegmatite.
	Photo ID: 200268 View Count: 95
Synchysite-(Y) : Ca(Y,Ce)[F\|(CO₃)₂]
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Brown-red synchysite-(Y) in grey-white matrix,overall specimen size 5.9 x 3 x 2 cm. RFC M1278.
© Michael C. Roarke	Photo ID: 74472 View Count: 276
Synchysite-(Y) : Ca(Y,Ce)[F\|(CO₃)₂]
	White Cloud pegmatite, South Platte Pegmatite District, Jefferson Co., Colorado, USA Reddish-brown sections on matrix; 4x2.5x2cm; specimen purchased from Colorado dealer.
	Photo ID: 142453 View Count: 62