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4 specimens listed
Page   1 |

Barite with Fluorite (US classic)
stock #0307-JM-1632
Cave-in-Rock, Hardin County
Illinois, United States
7.9 x 5.8 x 3.7 CM (cabinet)
price: $1150


An outstanding classic that is rarely seen on the market. Sheaves of fine blue Barite crystals in radiating habit on a contrasting Calcite matrix. Fluorites are noted on the edge and backside, but the main impact is from the Barite. Ex John Marshall collection, this has the rare strong blue color, most Barites were a cream white to gray hue. In very good condition as seen, the piece is very three dimensional with top color and form. A fine addition to any good suite of southern Illinois minerals, US classics or Barites.
Aragonite on Calcite on Fluorite
stock #19.1-363
Cave-in-Rock, Hardin County
Illinois, United States
6.3 x 3.9 x 3.3 CM (cabinet)
price: $170


An unusual old specimen from Cave in Rock, southern Illinois. Etched Yellow Fluorite with a hint of purple zoning is the matrix for a treelike spray of slender spikey Calcite crystals that are coated with secondary aragonite. Some of the Calcites have stair-stepped epitaxial growths along the prisms. Ex Larry Conklin with his label, This looks very much like some Minerva #1 mine specimens but Conklins laberl only lists Cave in Rock. A delicate, sculptural piece that is also somewhat fluorescent.
Benstonite on Fluorite
stock #15.1-967-(SM3121)
Cave-in-Rock, Hardin County
Illinois, United States
6.7 x 5.7 x 4.6 CM (cabinet)
price: $450
Worldwide mix summer

Benstonite in unusual distinct crystals clustered on Fluorite cubes. Ex Charles Noll collection, a choice example of this uncommon mineral that has always been a very desirable rarity from this region. The Fluorite cubes are also very sharp and clean with strong Fluorescence. These are only available from older collections and most are just a whitish coating on other minerals. This almost certainly came from the Minerva mine but the label does not give that specific detail so we leave this listed as Cave-in Rock only.
Fluorite with phantoms
stock #AX- 20-157
Cave-in-Rock, Hardin County
Illinois, United States
8.2 x 6.7 x 4.5 CM (cabinet)
price: $700
pre Tucson 2015 update

Excellent form and sharp edged cubes typify this fine old Cave in Rock Fluorite. In excellent condition and with a nice contrasting matrix of tiny golden Sphalerites and white Calcites. Moderate backlighting makes this glow deep purple hues and the phantoms are very evident. Backside contacting is typical but the 3 dimensional presentation is much better than usual.
4 specimens listed
Page   1 |