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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA Bixbyite crystal perched on a gemmy topaz crystal. Specimen size 24mm x 15mm x 7mm. From the Maynard Bixby type locality for bixbyite. Dave Richerson specimen and photograph. |
| © D. Richerson | Photo ID: 30155 View Count: 635 |
Bixbyite : (Mn3+,Fe3+)2O3, Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA 2.0 x 1.6 x 1.6 cm. This specimen features a very equant, lustrous, sharply formed bixbyite perched upon a natural pedestal of topaz and smaller bixbyites. This is a rather large bixbyite crystal, about as big as you can get and be perched upon something, matrix or association, and yet still be a competitive thumbnail size. Obtained from the ... |
| © Rob Lavinsky | Photo ID: 215058 View Count: 30 |
Bixbyite : (Mn3+,Fe3+)2O3, Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA 2.6 x 1.7 x 1.1 cm. This is a remarkable floating cluster, complete all around, of a 1 cm bixbyite perched astride two doubly-terminated topaz crystals. Obtained from the collector, John Holfert, approximately 10 years ago. |
| © Rob Lavinsky | Photo ID: 215061 View Count: 29 |
Bixbyite : (Mn3+,Fe3+)2O3, Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA Approx, size 3.1x2,4x2,0 cm specimen 2008 year |
| © Nuno Miguel Santos | Photo ID: 229048 View Count: 25 |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA A superb highly lustrous mirror-bright black sharp undamaged bixbyite crystal maesuring 0.7 cm on edge is set nicely upon a small rhyolite matrix. Very sharp and clean of damage; shows nicely all around. Measures 1.1 x 1.0 x 0.8 cm. Ex Peter Gillis collection. A fine thumbnail for the species! |
| © Dan & Diana Weinrich Minerals | Photo ID: 265149 View Count: 14 |
Hematite : Fe2O3 | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA A 3mm black tabular crystal of hematite on a rhyolite matrix. Collection of the photographer. Specimen was recovered circa 1980. |
| Photo ID: 189537 View Count: 86 | |
Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA What a gem! This complete, absolutely gorgeous crystal is the perfect thumbnail ....a fat gem perched on a natural display pedestal. These crystals Charlie had put away back in the 1960s after a good trade with dealer A.L. McGuiness GLOW with color and are, for combination of color and clarity, the finest I have seen for sale. This SUPER THUMBNAIL ... |
| © Rob Lavinsky | Photo ID: 112931 View Count: 174 |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA 4.7 x 4.3 x 2.0 cm. A sharp 1.2 cm GEM crystal, and I mean GEM quality, perched in a natural pocket that has a thin layer of purple fluorite druse around the edges. It was then filled in with calcite, most of which has dissolved out (or been dissolved by previous owners) revealing the pristine topaz inside. Ex. Charlie Key Collection. |
| © Rob Lavinsky | Photo ID: 131719 View Count: 163 |
Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA A classical style for the locale, featuring a FLOATER crystal of gem topaz included partially by the rhyolite matrix (the trick is to get one with GEMMY tips). Note the accenting pseudomorphs of bixbyite after garnet. This complete, absolutely gorgeous crystal is perfect...a fat gem perched on a natural display pedestal. These crystals Charlie had ... |
| © Rob Lavinsky | Photo ID: 112937 View Count: 136 |
Topaz : Al2[(F,OH)2|SiO4] | |
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Maynard's Claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA This is a rare cluster of GEMMY "gem crystals" showing unusually complete clarity without the inclusions of rhyolite matrix that so cloud them up. There is a slight contact on one back edge, as you can see in the upper-right photo, but the piece displays best with that to the rear anyhow and is otherwise symmetrical and complete all around. This ... |
| © Rob Lavinsky | Photo ID: 112938 View Count: 131 |
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