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Walter R. Kellogg


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Mineral Specimen #4046    Fluorite with Hyaline Opal and Muscovite on Quartz

Erongo Mountain, Erongo Region, Namibia

3.9 x 3.6 x 3.2 cm
The largest Fluorite crystal is 3.5 x 0.7 x 0.8 cm
1.5 x 1.4 x 1.3 in


Ex. Uli Bahmann

The Fluorite crystals on this specimen are highly unusual in both coloration and especially habit. The habit is quite long and narrow and do not even look like Fluorite. The color is an overall green with slight purple edging which is not unusual for the location. However, in the interior, there are light brown colored stripes running the length of the crystals. In the largest crystal, there are two of these stripes. The Fluorite is transparent and has a good luster. There are a few small yellowish colored books of Muscovite. Under SW UV, the Hyaline Opal becomes apparent fluorescing a bright green. The Fluorite has slight violet color with a distinct pink/brown stripe running the length of the largest crystal. NOTE: the colors depicted in the UV picture of the Fluorite are not exact, but as close as I could get - the fluorescence from the Hyaline apparently affected the camera's sensors. The specimen is in good condition with the exception of some internal cleaves on the second largest crystal.

This mineral is also found in the following galleries: Minerals From Africa | Fluorite | Fluorescents | Minerals Priced Between 300 and 499 Dollars