Illinois Mineral Specimens For Sale

     

            Fluorite and Calcite                                                       Fluorite                                                             Fluorite                                                        Fluorite

 

Historically, this area has produced many of the finest North American mineral specimens known.  Once common, quality specimens from Illinois have become rare and highly desirable.  Damage free specimens have always been uncommon and difficult to obtain. 

 

 

 

 

OKN-519

Back

OK-519    Fluorite with Calcite    Cave-In-Rock, Hardin County Illinois.  Ex. Harold L. Dibble collection.  This piece is a nice little specimen that measures 3.9 x 3.8 x 1.6 cm.  Back is crystallized, too.  Only minor edge contacts.  Some cube modifications by octahedrons.  Surfaces are stepped and cores are yellow.  Center has a small, healed, etched region where there was once an attachment or more likely a small loosely attached crystal.  Nice piece.  $45

 

 

 

 

 

OKN-917

Specimen is actually a deep BLUE color

Bottom side view of pyrite studded phantom

OKN-917     Fluorite with Pyrite   Cave-In-Rock, Illinois.  Ex. Harold L. Dibble collection.  This corner cleave measures 8.2 x 6.3 x 4.1 cm overall.  The color is BLUE.  Very clear with large gemmy regions and a small phantom base.  Edges are rough, as seen.  Very desirable color.  $50

 

 

 

 

 

OKN-916

OKN-916     Fluorite      Rosiclare Level, Denton Mine, Ozark-Mahoning Company, Harris District, Illinois.  Ex. Harold L. Dibble collection.  This looks like a roughly treated specimen but it is actually in excellent condition.  Only a small chip to one crystal on back.  The appearance is due to many of the cubes being modified by octahedral faces that are frosted and sometimes stepped.  There are also some contacts from other crystals along the edges of the piece.  The crystals are actually very clear as can be seen in the unmodified crystals.  The luster is good (typical), not what I would consider great.  9.5 x 7 x 6.2 cm.  A couple small, loose but stable crystals.  A very fine desirable specimen for numerous reasons although the photos fail to reflect this.   $350

 

 

 

 

 

OKP-365

Color is actually BLUE

OKP-365      Fluorite     Cave-In-Rock, Illinois.  Ex. Harold L. Dibble collection.  This partial crystal has been slabbed and polished to show its amazing phantoms and color (actually an aesthetic baby BLUE).  Very attractive.  8.4 x 4.1 x 1.6 cm.   $60

 

 

 

 

 

OKP-182

OKP-182     Calcite on Fluorite      Minerva #1 Mine, Cave-In-Rock, Hardin County, Illinois.  Ex. John Davis Collection.  This is a substantial specimen measuring in at 11.3 x 9.5 x 5 cm with cubes to almost 4 cm on edge.  The backside has blue cubes to 2 cm each, also with minor calcite.  Sorry, I took no photos of the back.  There is very minor rubbing as seen in images and a calcite shows damage.  In general the piece is in excellent condition and it will require magnification to note any issues.  Good luster and form to all the crystals.  An excellent example of this material. $350

 

 

 

 

OKN-811

TRUE color

OKN-811   Fluorite     Cave-In-Rock, Illinois.  Ex. Harold Dibble collection.   This is a large partial cube that measures 9.5 x 7.5 x 6 cm which would not show true color when I photographed it.  I've left these off color photos so it can be evaluated for shape and condition.   HOWEVER, it is BLUE with a minor purple core.  It has big, gemmy blue sections and a thin purple phantom.  The last photo was taken with my cell phone and does show how it looks in hand to the eye in any light.  There is chipping as can be seen but it is still a desirable example in a very desirable color.  $150

 

 

 

 

 

OKO-761

OKO-761     Fluorite     Rosiclare Level, Minerva #1 Mine, Ozark-Mahoning Company, Cave-In-Rock District, Illinois.  Ex. Harold L. Dibble collection.  This fluorite plate measures 20 x 13 x 5.2 cm overall with cubes having minor octahedral modifications to 7.3 cm on edge each.  It is a very uncommon copper color.  The luster is moderate but better than the images indicate.  The two cube corners on left have a couple layers of growth knocked off showing the zoned growth that resides below.  Great condition with healed edges and back.  Displays nicely.  $350

 

 

 

 

 

OKN-872

OKN-872     Barite on Fluorite     Cave-In-Rock, Illinois.  Ex. Paul and Dawne Dunning collection.  An attractive example measuring 7.2 x 6 x 4.4 cm.  A good specimen with some damage to the back corner of the large cube (a cleave).  Front view, however, is very nice showing lustrous white barites high on the nicely formed, moderately lustrous, cubes.  $70

 

 

 

 

 

OKM-162

OKM-162      Witherite and Fluorite      Cave-In-Rock, Illinois.  Ex. Harold L. Dibble.  A domical piece composed of several large intergrown crystals.  They have penetrated by a thin stringer of purple and blue fluorite.  Edge contacts but body of specimen is in nice condition.  8.5 x 7.2 x 3.2 cm.  Flat back (or base).  Nice example and I assume very fluorescent.  $240

 

 

 

 

 

OKO-781

Back

Sphalerite

OKO-781        Galena, Fluorite, Sphalerite       Cave-In-Rock, Illinois.  Ex. Harold L. Dibble.  One side is classic, patina rich galenas nd one dark sphalerite.  The other is small purple cubes of fluorite.  I'd call this a floater in that the small edge area that may once have been attached to wall rock has naturally healed.  Minor scuffing on a couple of the tiny fluorites probably because this heavy specimen has always been displayed with that side down.  7.4 x 5.2 x 4.1 cm.  The big galena is 3 cm on edge.  Nearly damage free.  Great surface texture and features.  This is a rather uncommonly rich galena for the Cave-In-Rock district.  $300

Illinois Specimens, Page 2

 

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