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. 

 

 

 

 

OKP-919

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OKP-919      Fluorite on Sphalerite     Cave-In-Rock, Hardin County, Illinois.  Ex. John Davis collection.  This small floater measures 6 x 4.7 x 3.1 cm.  The front face (first image) has several nice complete and partial crystals of purple fluorite, as seen.  No damage.  Back has brighter but smaller sphalerites and all the fluorites are shards.  Some sphalerites are twinned.  $40

 

 

 

 

 

OKP-917

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OKP-917      Fluorite on Sphalerite     Cave-In-Rock, Hardin County, Illinois.  Ex. John Davis collection.  This small floater measures 5.2 x 2.4 x 1.4 cm.  The front face (first image) has complete and partial crystals of purple fluorite, as seen.  No damage.  Back has brighter but smaller sphalerites and no fluorite.  Some sphalerites are twinned.  $40

 

 

 

 

 

OKP-627

OKP-627     Fluorite with Calcite and Petroleum     Rosiclare, Illinois.  This attractive yellow specimen is composed of two partial cubes, the largest having very interesting corner modifications.  The calcite is like the fluorite, damage-free and attractive.  Some internal cracks as well as nice gemmy areas.  3.8 x 2.5 x 2.4 cm.  $125

 

 

 

 

OKP-624

OKP-624    Fluorite with Petroleum      Rosiclare, Illinois.  Ex. Paul and Dawne Dunning collection.  This light purple, transparent cube is attractive but does have a noticeable internal fracture to to a impact chip on backside of the piece seen clearly in third image.  2.3 x 2.2 x 2 cm.  Mounted in a perky box.  $25

 

 

 

 

 

OKP-399

OKP-399    Witherite on Witherite casts after ?        Cave-In-Rock, Harden County, Illinois.  Ex. John Davis collection.   As can be seen here a single crystal of witherite rests among casts of witherite after an unknown species (likely calcite).  The crystal is beautifully formed, very translucent and lustrous for the species, and damage free.  It sits nicely for display and is damage-free.  The crystal is 2.5 cm in diameter and the piece measures 4.7 x 4.2 x 4 cm overall.  Minor blue mineral tac on base.  This is as nice a witherite miniature as can be found.  $550

 

 

 

 

 

OKN-519

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OKN-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-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

 

 

 

 

 

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

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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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