MINERAL SPECIMENS FOR DISPLAY
= Fluorescent
Specimen
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Radioactive Specimen
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GOLD near Laverton, W.A., Australia In the early 1980’s, when the news began to spread of finds being made within previously worked Australian alluvial Gold deposits, many "fossickers" (field collectors) turned to prospecting the historically famous Gold producing localities with metal detectors. Many sites in Western Australia, as well as in Victoria and South Australia, have produced amazing finds of alluvial nuggets. Items A. and B. have some relict texture from the "reef" type deposit in which they were formed. Item C. has fairly smooth faces. Both front and back views of this specimen are shown. The base of the specimen, however, exhibits a large triangular crystal face (see the accompanying photo)! Additional information re: Australian Gold localities appears in the "Mineralogical Record" magazine, Vol. 18, No. 1 (Jan-Feb 1987 special Gold II issue), pages 5-32. On our April 2003 trip to Australia, we purchased these nuggets directly from a fossicker who found them with his metal detector. Good find!!! Pricing is calculated @ $30. / gram for item A., and $29.50 / gram for items B. and C.
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GALENA Mandan Orefield, near Mandan, Southern Rhodope Mountains, Bulgaria The Mandan Orefield is situated near the Bulgaria-Greece border, and the sulfide ores of the district have been mined since the 5th-6th centuries, B.C. ! A very good article covering the mines and minerals of the Mandan Orefield appears in the "Mineralogical Record" magazine, Vol. 22, No. 6 (Nov-Dec 1991), P. 439-445 -- data on the various crystal habits of Galena is given on P. 443-444. The two specimens listed below are both aesthetically appealing crystal groups of sharp, metallic luster, lead-gray crystals on matrix. The largest Galena crystal on item A. is a cube with octahedral faces, measuring 1/2" X 1/2". Micro crystals of Quartz are associated on item A. The largest Galena crystal on item B. is a 1/2" X 3/8" cube, and the associated minerals are micro crystals of Quartz, Sphalerite, and Chlorite. Order items MI-003, A. or B.
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HEMATITE Monte Calvario, Biancavilla, Catania, Italy These exceptionally brilliant black, submetallic luster, tabular Hematite crystal groups are available from a find made in 1982. All specimens have extra sharp, striated and/or stepped growth faces with mirror-like surfaces, without matrix. Item A. is a "thumbnail" size specimen mounted in a 1 1/4" cubic black base, clear lid Perky Box. Items B. and C. are not mounted.
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RHODONITE ! ! ! Yes, this is crystallized Rhodonite, not Rhodochrosite! This occurrence was reported in
the "Mineralogical Record" magazine, special issue on Peruvian localities,
July-Aug 1997, page 56 (28:4:56). The occurrence is also mentioned briefly in the
"Mineral News", June 1998, page 5, paragraph 1. As shown in the accompanying
photographs, the Rhodonite from this locality has formed groups composed of individual,
often prismatic, terminated crystals, with little or no matrix. The specimens offered here were
mined in 1997-1998. Associates noted include minor amounts of tiny
colorless Quartz crystals.
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Copyright 1998-2008 by Mineralogical Research Co.
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