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Mineral Specimens with Fluorite
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10.3 x 5.3 x 1.5 cm. This intergrown plate of multihued fluorite, to 2.25 cm across exhibits excellent luster and translucence. Several crystals show stepped growth. The various shades of lavender and rich purple are attractive and the darker, opaque color in the cores highlights the phantoms, oriented 45 degrees from the plane of surrounding crystal growth.
8.5 x 4.6 x 2.1 cm. This is a flat plate of intergrown, lustrous and translucent fluorite with crystals to 5.0 cm across. Deep in the depths of the crystals, dark green color zoning is evident at an oblique angle to the plane of the larger crystals.
7.5 x 4.6 x 2.7 cm. A superb, large stepped growth fluorite crystal, measuring 4.25 cm across, is perched on the end of the piece. This crystal has a large dark purple core that is oriented 45 degrees from the plane of crystal growth. The specimen has good luster and translucence along with beautifully variegated lavender colors.
Super-sharp, wonderfully transparent, with a distinct phantom – just a fine fluorite crystal with minor crystals serving as a “base”. Pristine and damage-free (except for a natural contact on the back face where removed from matrix) 4.7 x 4 x 3.5 cm
Classic Blanchard-blue crystals, translucent, sharp as can be and nicely isolated, to 1 cm on edge. In very good shape: extremely minor micro-dings in a few places that you have to look hard to find. 6.3 x 4.5 x 2.3 cm
A beautiful mini that has it all: a 2-cm transparent fluorite of light purple with a distinct phantom inside it, grown partly around one of two very finely-formed and terminated ferberites (to 2.4 cm), with accenting quartz crystals. 4.75 x 3 x 2.6 cm
Mined at the end of 1994, This is a razor-sharp cluster of three deep purple fluorite crystals, with sharp, distinct zoning apparent under good light from one shade of violet to a deeper purple hue. You see fewer and fewer of these good Illinois fluorites around. 6 x 5 x 3.2 cm
A gorgeous specimen of lustrous, transparent yellow fluorite cubes with purple edge phantoms and partially covered with transparent, water-clear calcite crystals from the famous Cave in Rock District of Southern Illinois. Specimens of this quality are becoming harder to obtain, as all the mines closed in the 90s. 9.8 x 7.2 x 5.8 cm
8.7 x 8.4 x 8.1 cm. A very large crystal of dark purple fluorite from Illinois, with stepped faces. The crystal is complete all around - the back side, which was the contact face, healed in the pocket (the crystal having broken off naturally inside the pocket) and/or was etched so that it has a bizarre appearance of dozens of piled-up sheaves.
14.4 x 11.4 x 2.8 cm. The fine fluorite crystals here measure to 2 cm along the edge, and have good saturated deep pink color.
11.4 x 6.9 x 5.0 cm. The central crystal here measures over 5 cm along the edge. These are superb. Not only do they have a beautiful stepped form and internal clarity, but also an unusual silky luster that makes them extra-aesthetic. This mine is known for green fluorite, so this is an unusual piece for the locality.
10.8 x 7.9 x 4.3 cm. A large fluorite crystal, 5.5 cm along the edge, with gorgeous purple outlines, from the now-closed Elmwood. Note the pretty stepped form on the crystal faces.
4.4 x 3.1 x 1.4 cm. Beautifully clear crystals of purple fluorite decorated with little poker-chip calcites, from China. That is green micro-muscovite you see atop one of the fluorites.
9.8 x 9.8 x 6.8 cm. Flowery blooms of baryte piled up richly on a matrix covered on the display side with gemmy, sparkly golden crystals of fluorite.
Translucent crystals to 3 cm across. 12.5 x 9 x 3 cm
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Rob Lavinsky, rob@irocks.com
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