Calcite on Fluorite

Bethel Level attr: Green Tracts, M.F. Oxford No. 7 Mine, Ozark-Mahoning Group, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.6 X 6.9 X 5..2cm

 One could argue this is a complete floater Fluorite cluster with the deepest orangish yellow color found at Cave-Rock, with thin purple phantoms near and on the edges, transitioning to an outer zone of classic blue, with a final ultra-thin zone of lustrous purple! Yellowish- white calcites add nice contrast. I'll try to satisfy cynics by pointing out a bit of obvious curiosity: the back of the specimen comprises nearly entirely rehealed cleavages, and the central of the three Fluorite crystals has a 1.0cm wide zone of cleaving that also shows rehealing. Ex. Dr. Perry and Anne Bynum Collection, from the mid-1960s. Top color!

#MVT-009          SOLD

Fluorite and Calcite on Sphalerite

Minerva No. 1 Mine, Ozark-Mahoning Group, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

5.2 X 5.2 X 4.6cm

An early 1960s piece from the Richard Derrickson collection (more on this later) featuring a  2.6cm wide composite Fluorite on lustrous, reddish brown Sphalerite matrix. The earliest Fluorite is pale yellow and etched, then overgrown by later generations of gemmy, light blue Fluorite with local, thin purple accents. A latest grouping of yellowish to ivory white, terminated calcite crystals add the final touch! If the Fluorite didn't have a notable, 2mm long cleave on one corner (see the upper left corner of the Fluorite in the photo on the left), the price would be doubled, at the very least!

#MVT-006          $500


SOLD

Fluorite, Galena, etc.

Hill-Ledford Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.0 X 5.5 X 4.8cm

An artist's palette of Illinois colors, and collected by Richard Derrickson in the early 1960s (more on this soon), this piece captures a distinctive association of six species: abundant deep purple Fluorite cubes with a lustrous grouping of Galena, several lustrous Sphalerite crystals that are nearly black and commonly associated with sub-millimeter euhedral Chalcopyrite, all with accents of slightly golden yellow Calcites on drusey Quartz matrix! The specimen is in great condition, as the photographs show. While cleaning, I found the main Galena had been reattached; I've since reattached it in exactly proper orientation, and the repair is invisible.

#MVT-013          $750

Barite on Fluorite

Minerva No. 1 Mine, Ozark-Mahoning Group, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.1 X 7.4 X 5.8cm

Radiating clusters of spikey, light creamy yellow Barite on a mostly rehealed matrix of glowing, classic blue to purple, Fluorite breccia. There is a cleaved area on the back where this was liberated from the pocket, otherwise in fine condition. Note: the color is most similar to the photo on the lower right, but this was one of the first specimens I photographed for the new website, for which I decided to not make any color-alterations to any photographs, as the colors are accurate unless stated otherwise. These are representative, but the specimen is better!

#MVT-002          $475

Fluorite on Sphalerite

Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA

7.2 X 5.9 X 4.0cm

Lustrous Fluorite cubes on an equally lustrous Sphalerite matrix. The Fluorites have pale purple, translucent cores with outer zones of grape-jelly to darker purple Fluorite that culminates in complex, lustrous faces. Quintessential Elmwood, from a piece of land inherited by former presumptive President-elect Al Gore, which left anti-mining environmentalists highlty critical of a perceived "hypocrisy" that their Flagbearer made a healthy royalty from mining, even during his "An Inconveint Truth" tour! No damage; base is sculpturally sawn. 

                          #MVT-007          SOLD

Calcite on Fluorite with Chalcopyrite

Bethel Level, Annabel Lee Mine, Harris Creek Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.2 X 8.0 X 6.3cm

Glowing golden yellow Fluorites with a 3 to 4mm-thick outer zone of classic blue and thin purple bands, crowned by lustrous, translucent Calcites with gemmy, pale yellow tips. The Fluorites are lustrous, but not quite glassy due to myriad stepped faces +/- inclusions and/or epimorphs of small Chalcopyite crystals. The photos on the right capture the piece most accurately, with NO BACKLIGHTING at all! Thanks to Ross Lillie for specific locality details! It was sold to me as a Denton piece...

#MVT-001          $1,450

15 Specimens added  June 15, 2016

Calcite on Marcasite

Shullsburg Area, Upper Mississippi Valley District, Lafayette County, Wisconsin, USA

9.5 X 7.8 X 4.5cm

Collected by Richard Derrickson in the mid-1960s from the northernmost cluster of significant MVT lead-zinc mines in the USA, this top-notch representative comprises lustrous flattened discs of Calcite, to 4.1cm across, with gemmy to ultra-faint purplish zones as seen (or not, as they are so translucent and pale!) in the photos. These roll across a mounded surface of Pyrite/Marcasite. No damage to any major Calcites, and only minimal contacts confined to the margins.

#MVT-010          SOLD

Sphalerite on Sphalerite

Treece, Picher Field, Tri-State District, Cherokee County, Kansas, USA

6.5 X 5.0 X 4.6cm

Classic arrangement of lustrous, "blackjack" Sphalerite on a bed of small, gemmy, brownish-red "rubyjack" Sphalerite. A piece of history, when the lead-zinc mines of the Midwest helped build the American infrastructure; most are long closed. Thankfully, this survived the mills, and sports a 1.2+cm main crystal perched almost defiantly on a bed of dark red crystals, all lining a shard of chert matrix. No damage save a slightly contacted area visible as a few, very small, pale tannish orange spots on the right side of the specimen in the photo on the left.

#MVT-008          $275

Fluorite

Sub-Rosiclare Level, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.2 X 5.8 X 4.9cm

Large mostly complete or rehealed Fluorite comprising a golden-yellow core with a thick zone of saturated, classic Cave-in-Rock blue. Mostly translucent with gemmy sections, the depth of the crystal and minor internal veils combine to make this one of the most deeply blue colored Fluorites I've seen from the region, and definitely the best "blue" I've handled. The luster ranges from good to glassy on the smaller side crystals. There are the typical, scattered, small contacts here and there, but the crystal is nearly complete, with an etched and mostly rehealed back, and cleavage contacts along the base where it separed from a Fluorite matrix, visible on the bottom of the photo to the left. This one glows with any backlighting, used only weakly in the photo on the bottom right.

#MVT-012          $875

Fluorite with Sphalerite and Galena on Quartz

Hill-Ledford Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.0 X 5.5 X 4.8cm

Collected by Richard Derrickson in the early 1960s (more on this soon) from an earlier mine in this famous district, this specimen features nearly pristine (there is one small cleave on one small Fluorite to note, barely noticeable even in person) series of very light purple and bluish purple cubes of Fluorite with numerous, gem-clear zones. This elongate cluster reclines on a matrix of larger Fluorites (the crystals on the left edge of the photo on the left) and small drusey Quartz with scattered, dark Sphalerite and silvery Galena crystals to 4.8mm. This piece is an important representative from an early era of modern mining in this district.

#MVT-014          $475

MVT GALLERY I

Fluorite

Minerva No. 1 Mine, Ozark-Mahoning Group, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

10.0 X 6.5 X 2.0cm

From the Richard Derrickson collection and sourced in the early 1960s, these were the first "blue" Fluorites found in the area. Numerous deeper blue specimens were found later as the mines penetrated the famous Rosiclare and Sub-Rosiclare Levels, but this one is unique in its soft "baby" blue coloration, with satiny luster and a later sprinkling of complex, almost skeletal crystals of purplish white Fluorite. The back is a cast, and there is no damage of note.

#MVT-003          $375

Calcite on Fluorite

Denton Mine, Goose Creek Mine Group, Harris Creek Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

8.8 X 6.5 X 6.0cm

A golden yellow, lustrous (some glassy faces!), gemmy to translucent Calcite on a matrix of Fluorite cubes with bluish purple cores and moderately lustrous, purple outer zones, sprinkled with sparkling small Calcite "gems." One tiny etched spot on the main Calcite, but excellent condition overall.

#MVT-004          $1,850

Sphalerite on Dolomite

Cumberland Mine, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee, USA

14.3 X 6.8 X 4.0cm

Undulating matrix of small Dolomites culminating on the edges and protrusions with larger, pearly white Dolomite crystals to at least 5mm, with latest lustrous Sphalerite. The Sphalerite is zoned, with areas of lower-Fe content providing deep red flashes amongst the nearly black, higher Fe content Spahlerite crystals.

#MVT-015          $175

Fluorite and Calcite on Sphalerite

Sub-Rosiclare Level, Annabel Lee Mine, Harris Creek Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

11.0 X 8.0 X 4.0cm

Crisply terminated, limpid crystals of lustrous Fluorite adorn a rolling matrix of moderately lustrous, reddish brown Sphalerite crystals, with a small doubly terminated Calcite. The color goes from internal golden yellow through a zone with thin purple bands into a very light blue, lustrous outer zone. The paleness of these zones (ranging to nearly colorless!) distinguish this from other occurrences. Originally collected circa 1988, obtained from the Gregory Crenko Collection, with thanks to Ross Lillie for providing the accurate provenance! No damage save very minor chipping along a couple of Fluorite edges; about as pristine as these get!

#MVT-005          $1,750

SOLD

Calcite with Fluorite on Quartz

Hill-Ledford Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA

6.5 X 5.5 X 3.0cm

Undamaged, glowing golden yellow, lustrous crystals of Calcite, several doubly terminated, with two dark purple cubes of Fluorite, sharing a drusey quartz matrix with small Sphalerites. I trimmed this example of nearly pristine crystallization from a larger, damaged plate, trying to frame the main Calcite very near the top. Collected by Richard Derrickson in the early 1960s (more on this soon). The back is sculpturally sawn.

#MVT-011          $225

SOLD