Brazil Mineral Specimens For Sale, Page 3

 

       

                  Tourmaline                                            Tourmaline on Quartz                                       Beryl                                 Topaz                                       Topaz

 

Brazil has supplied collectors with wonderful mineral specimens for decades.  The gem material such as tourmaline, aquamarines, and topaz receive most of the acclaim, however there are a great diversity of Brazilian minerals worth noting.  Because we purchase older collections we often have fine examples of Brazilian minerals that are not common in today's contemporary mineral market.

 

 

 

OKL-720

OKL-720    Tourmaline (probably elbaite) with Albite      Minas Gerais, Brazil. Ex. Thomas G Fowler Collection. Transparent surfaces grade to a translucent to opaque interior. Good luster. Base contacts and very minor back contact. No damage. Terminations are crude with minor quartz crystals. Fibrous bands across a couple of areas. Stands naturally on end. Very good interesting aesthetic specimen for this price. $475

 

 

 

 

 

 

OKF-420

OKF-420      Titanite     Capelinha, Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Prev. Ward’s Minerals of Rochester, 1976.  This nice specimen barely fits in a perky box diagonally… 4.8 x 2.3 x 1 cm twin.  Fully formed with only a minimal area of contact on its base and a couple of very tiny nicks.  Transparent to translucent with nice gemmy areas throughout with excellent luster on most surfaces.  Sharp reentrant angle and interesting surface growth features. An outstanding example of the species.  This specimen now accompanies a faceted stone of .5 ct.  It is a nice oval but far from flawless as should be expected with this material.  The cut is good and the inclusions moderate.  It is a nice example of this material which is rare to find in facetable rough.  Sorry that I could not get a better close-up but the picture is a very good representation of the stone's color and clarity.  The crystal and stone sit on a custom engraved acrylic base (with a small dab of adhesive to allow stability to the crystal).  A nice price for an attractive display.  285$

 

 

 

 

 

 

 

OKL-534

OKL-534    Anatase    Cuiaba District, Minas Gerais, Brazil.  An approximately 2.4 cm, double terminated floater crystal with no damage mounted in a perky box.  $25

 

 

 

 

 

 

 

OKL-485

OKL-485    Anatase    Cuiaba District, Minas Gerais, Brazil.  A fine, double terminated crystal of large size, measuring at least 2.1 cm (visible).  Mounted in a perky box.  A floater with no damage.  Really nice crystal.   $25

 

 

 

 

 

 

 

OKL-480

OKL-480    Anatase    Cuiaba District, Minas Gerais, Brazil.  A fine, double terminated crystal of large size, measuring at least 2.4 cm (visible).  Mounted in a perky box.  A floater with no damage.  Really nice crystal.   $30

 

 

 

 

 

 

 

OKL-482

OKL-482     Beryl var. Goshenite      Resplendor, Minas Gerais, Brazil.  A single crystal of tabuar form measuring 1.5 cm in diameter and approximately .6 cm thick.  It appears to be a floater with one side being etched.  Nice hexagonal, clear crystal with minor tourmaline inclusions.  No damage.  Very famous find.  Nicely priced at $25

 

 

 

 

 

 

 

OKL-477

OKL-477    Anatase    Cuiaba District, Minas Gerais, Brazil.  A fine, double terminated crystal of large size, measuring at least 1.8 cm (visible).  Mounted in a perky box.  A floater with no damage.  Moderate pitting.  $20

 

 

 

 

 

 

 

OKK-909

OKK-909     Titanite     Campo do Boa Mine, Capelinha, Minas Gerais, Brazil.  A translucent twinned crystal floater with a rough backside and nice gemmy front.  2.6 x 1.2 x .5 cm with no damage.  $30

 

 

 

 

 

 

 

OKK-619

OKK-619     Chrysoberyl    Minas Gerais, Brazil.  Twinned crystal which is somewhat translucent, is damage free, and is (I assume) alluvial in nature.  2.2 x 1.5 x 1 cm.  A very nice and desirable example.  $90

 

 

 

 

 

 

 

OKH-418

OKH-418     Elbaite      Minas Gerais, Brazil.   2.7 cm each and all gem throughout these two crystals will be of value to someone.  Both are double terminated, high in luster, and damage free.  One crystal is nicely hemimorphic.  A deal at $30

 

 

 

 

 

 

 

OKF-647

OKF-647     Aquamarine      Minas Gerais, Brazil.  Ex. Charles Daniels collection.  182 grams.  This large crystal is crudely double terminated and appears to have been, at one time, to have been a rider on the prism of a much larger aquamarine.   The blue is unusual and caused from iron (not chromium) in its composition.  10.7 x 4.6 x 2.6 cm.  Not of faceting quality but still a nice mineral specimen with good clarity but lots of  veils and internal interference.   Only $190

 

 

 

 

 

 

 

OKJ-877

OKJ-877    Anatase    Datas, Minas Gerais, Brazil.  Ex Paul and Dawn Dunning Collection.  Beautifully formed, double terminated crystal with nice luster.  Small, as most are, at 1.15 cm.  Attractively mounted in a perky box.  No damage.  $40

 

 

 

 

 

 

OKJ-856

OKJ-856    Goshenite    Resplendor, Minas Gerais, Brazil.  Ex Paul and Dawn Dunning Collection.  This tabular crystal is water clear and measures 1.7 x 1 cm and is only a couple mm thick.  There is edge contact on one side and some internal fracturing. Mounted in a perky box.   $40

 

 

 

 

 

 

 

OKJ-859

OKJ-859     Rose Quartz     Minas Gerais, Brazil.  Ex Paul and Dawn Dunning Collection.  Nice deep pink, lustrous crystal in a concave, vug like opening.  The piece measures 2.5 x 2.5 x 2 cm and is damage free. Mounted in a perky box.  $45

 

 

 

 

 

 

 

OKK-598

OKK-598     Childrenite      Mina Gerais, Brazil.  Ex. Paul and Dawne Dunning collection.  A hexagonal bipyramid measuring 2 x 2 x 1.5 cm.  One termination has a chip.  $40

 

 

 

 

 

 

 

OKJ-743

OKJ-743     Quartz with distinct phantom     Nubia, Bahia, Brazil.  Ex. Paul and Dawne Dunning collection.  Attractive point measuring 3.1 x 1.8 x 1.6 cm with a well defined phantom.  Very tiny tip ding otherwise perfect example.  Mounted in a perky box.  $40

 

 

 

 

 

 

 

OKJ-599

OKJ-599     Magnetite     Jacupiranga Mine, Sao Paulo, Brazil.  Ex. Dr. Steve Chamberlain collection.  A fantastic, high luster floater composted of several crystals to 1.7 cm each expertly mounted in a perky box.  2.1 x 1.8 x 1.2 cm overall.  An attractive problem free example.  Showy.  $35

 

 

 

 

 

 

 

OKJ-600

OKJ-600    Tourmaline (Elbaite)   Minas Gerais, Brazil.  An old specimen I had laying around from when I first became a dealer in the early 1990s.  1.4 x 1 x .7 cm.  Well terminated, good luster, excellent form, translucent to transparent and a fine green color.  Good example.  $25

 

 

 

 

 

 

 

OKH-413

OKH-413     Rose Quartz     Brazil.   Light to deep pink colored crystals up to 1 cm each compose this 2.5 x 2 x 1.3 cm specimen.  No damage.  $40

 

 

 

 

 

 

 

OKH-414

OKH-414     Rose Quartz     Brazil.   Light to deep pink colored crystals up to 1 cm each compose this 2.6 x 1.8 x 1.2 cm specimen.  No damage.  $40

 

 

 

 

 

 

 

OKH-385

Close-up showing phantoms

OKH-385    Barite    Jaoa Pessoa, Paraiba, Brazil.  Ex. James Turek Collection.  A fine damage free miniature from this prolific locale.  This would have been an early specimen from the site.  It is beautifully composed with a nice cluster of tabular barites to 1.7 cm on edge each.  No peripheral damage or contacts (a floater with matrix).  Gemmy and with nicely developed phantoms.  90$

 

 

 

 

 

 

 

OKI-689

OKI-689    Elbaite    Minas Gerais, Brazil.  Deep green single crystal with moderat striations which hid much of the specimens internal transparency.  Some internal cracking but mostly gemmy.  Good termination with minor modifications.  1.5 x 1 x .9 cm.  No damage.  38$

 

 

 

 

 

OKI-564

OKI-564    Uvite     Brumado, Bahia, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Deep red, translucent uvites to over a cm each grouped together along one side of a small section of crystallized magnesite.  The crystals have wonderful clean terminations on one end and fibrous terminations on the opposing end.  No damage and good luster on the tourmalines.  40$

 

 

 

 

 

 

 

OKI-561

OKI-561    Rutilated Quartz    Bahia, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Nice sized 3.9 x 2.6 x 2.5 cm crystal with liberal bright gold colored rutiles within.  There is a very tiny tip rib, otherwise in good shape.  35$

 

 

 

 

 

 

 

OKI-562

Back

OKI-562    Euclase    Santo do Encoberto, Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  A fine, gemmy, double terminate crystal measuring 1.7 x .7 x .4 cm.  Minor internal fracturing.  One termination has a small chip.  High luster, minor striations.  Nice example for the TN collector at a great price.  50$

 

 

 

 

 

 

 

OKI-563

Too dark but you get the idea

OKI-563     Elbaite    Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Bi- colored tourmaline with an opaque green base and transparent pinkish purple top.  This gemmy region is .4 cm thick.  Entire crystal measures 1.3 x 1.3 x 1.2 cm.  Micro chip on one edge of termination, is not at all distracting.  55$

 

 

 

 

 

 

 

OKI-567

OKI-567     Schorl    Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Very high luster and moderat striations on this fine black specimen.  The single terminated crystal measures 3 x 2.4 x 2.2 cm.  A couple really tiny termination edge rubs.  Very fine condition and a nice display piece which is better than the pics indicate.  60$

 

 

 

 

 

 

 

OKI-473

OKI-473    Fluorapatite on Cleavelandite and Tourmaline   Itatiaia, Minas Gerais, Brazil.  Ex. Nancy Collins collection.  An attractive display with a tiny (.7 cm wide) dark pink, tabular apatite standing up high off of platy feldspar.  There is a green tourmaline which shoots up through the middle of the specimen terminating behind the apatite.  2.2 x 1.5 x 1 cm overall and nicely mounted.  140$

 

 

 

 

 

 

 

OKI-548

OKI-548     Imperial Topaz.    Dom Bosco, minas Greais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Cleaved flat base to this 1.8 x .9 x .7 cm specimen.  All gem.  Tiny ding on back of termination and back of prism.  Still outstanding.  Rare material.  95$

 

 

 

 

 

 

 

OKI-586

OKI-586     Aquamarine     Minas Gerais, Brazil.  Ex. Nancy Collins Collection.  Gemmy and a very light greenish blue color.  The crystal is all gem and measures approx. 1.7 x 1.4 x .9 cm.  It has complex form and minor quartz crystal riders.  Some damage to the tiny quartz and a small chip on lower part of termination on back 1 to 2 millimeters in size).  Attractive and very display worthy.  100$

 

 

 

 

 

 

 

OKI-725

OKI-725    Morganite    Sao Geraldo de Baixio, Minas Gerais, Brazil.  This specimen is the remains of half a tabular beryl crystal which has been extensively etched.  It is very light in color an is a gemmy floater measuring 7.5 x 5.5 x 3.5 cm.  A prize for anyone who enjoys etched crystals.  No damage, sits nicely for display.  275$

 

 

 

 

 

 

 

OKI-726

OKI-726    Morganite     Sao Geraldo de Baixio, Minas Gerais, Brazil.  This specimen is the remains of half a tabular beryl crystal which has been extensively etched.  It is very light in color an is a gemmy floater measuring 8.8 x 4.5 x 2.8 cm.  A prize for anyone who enjoys etched crystals.  No damage, sits nicely for display.  225$

 

 

 

 

 

 

 

OKI-170

OKI-170    Magnesite    Brumado, Bahia, Minas Gerais, Brazil.   Prev. Carlos Barbosa.  A wonderful cluster of clear crystals to .8 cm on edge on a white matrix.  This fine group shows a strong contact along one edge and very minor contact along another yet it displays well from several direction.  No damage to display face(s) crystals.  5.8 x 4.5 x 3.1 cm overall dimensions.  Very nice example for this species.  75$

 

 

 

 

 

 

OKI-171

OKI-171    Uvite and Magnesite    Brumado, Bahia, Minas Gerais, Brazil.   Prev. Carlos Barbosa.  This nice TN specimen sports a 1.8 cm deep green, translucent uvite on a large crystal of magnesite.  The magnesite has hematite phantoms, is transparent and in areas where it grades to a white color it is translucent.  There are tiny uvite and magnesite riders sprinkled on the primary uvite which gives it some extra zip.  Excellent luster and form to both species in this combination piece.  A minor basil cleave on which the specimen sits nicely for display, otherwise a damage free floater which views very nicely from any direction.  A fine piece in all regards.  95$

 

 

 

 

 

 

OKF-641

OKF-641    Haiweeite    Teofilo Otoni, Minas Gerais, Brazil.  Ex. Jim Turek Collection.  Plenty of bright yellow balls of haiweeite encrust this specimen.  5 x 3.6 x 3.2 cm overall.  Clear acicular crystals and a larger peach colored crystal both of which I can not identify.  Radioactive.  Sits and displays well.  150$

 

 

 

 

 

 

 

OKF-465

OKF-465    Tourmaline in Quartz    Minas Gerais, Brazil.   Prev. Nancy Collins collection.  A very aesthetic specimen measuring 3.2 cm in length and mounted in a perky box.  The tourmaline in a rich green color, gem and flawless.  It is girdled within a clear quartz crystal with its frontal view and one side full exposing the fine tourmaline.  The crystal of tourmaline is somewhat tabular allowing for light to penetrate it easily.  The tourmaline is not terminated but appears to be unless viewed quite closely.  Price to move….40$

 

 

 

 

 

 

 

OKF-423

OKF-423       Brazilianite    Conselheira, Pena, Minas Gerais, Brazil.  Ex. Dr. Steve Chamberlain Collection.  Circ. 1983.  A fine thumbnail specimen composed of two sharply terminated crystals measuring 3.3 x 2.2 x 1 cm overall.  High luster and mirror clean faces.  Crystal on left is gem and missing its tip, otherwise in fine condition.  Gem rough alone makes this piece a good buy but it is first and foremost a fine mineral specimen.  65$

 

 

 

 

 

 

 

OKF-372

OKF-372    Spodumene   Vittoria da Conquista, Brazil.  This crystal is all gem material, and is a light yellow color.  The piece measures 8.2 x 1.3  x .6 cm.  It is highly etched and shows minor internal fracturing.  Too thin to cut into substantial gemstones, this specimen is well suited as a display piece.  No damage.  $65

 

 

 

 

 

 

 

OKF-341

OKF-341    Hematite pseudo. after Magnetite.     RESERVED     Santa Rosa, Brazil  Ex. Dr. Steve Chamberlain collection.  Prev. Bob Metzger, 1980.  A beautifully formed grouping of magnetite crystals to 1.5 cm on edge which is now replaced by hematite.  3.7 x 2.6 x 1.7 cm and composed of numerous large octahedrons.  The surface features are interesting, the luster nice, aesthetics excellent and the location desirable.  A showy specimen for the discriminating collector.    $170

 

 

 

 

 

 

 

OKF-344

OKF-344    Hematite     Santa Rosa, Brazil.  Ex. Dr. Steve Chamberlain collection.  High luster hematite octahedrons with other modifications to 2.5 cm each in a small cluster measuring 3.2 x 2.5 x 2.1 cm overall.  A couple small chips but very nice still.  Interesting growth hillocks on some faces.    $50

 

 

 

 

 

 

 

OKF-175

OKF-175    Hematite    Itabira, Minas Gerais, Brazil.    Ex.  Dr. Steve Chamberlain collection.  This large stocking hematite appears cubic in form.  It measures 2.5 cm on edge and its surface is highly fractured along one area between crystal faces.  The surface appears flaked away.  This region is all fully crystallized as is the rest of the specimen.  This is a very stable stocky hematite crystal with the highest of luster and is simply bizarre form.  A very desirable piece.   $295

 

 

 

 

 

 

 

OKF-214

OKF-214    Uvite on Magnesite    Burmudo, Bahia, South America.  Within the center of these clear magnesite crystals can be seen a 1.1 cm, heart-shaped, translucent tourmaline.  A wonderful display piece which sits on edge.  The magnesite sera to 1.2 cm on edge each.  The attractive example of material which was once relatively common.  $190

 

 

 

 

 

 

 

OKF-206

OKF-206    Titanite Twins on Albite and Epidote    Minas Gerias, Brazil.  A very displayable grouping of gem titanite crystals to .9 cm on edge with albites to 1.7 cm.  I'll crystals are well formed and attractive.  One titanite on the edge of the piece, near the top, is broken off.  9.5 x 5.1 x 1.7 cm.  A few of the albites are somewhat dirty looking but generally this is an attractive specimen.  $150

 

 

 

 

 

 

 

OKF-125

OKF-125    Siderite and Dolomite    Minas Gerais, Brazil.  Ex. Nancy Collins Collection.   6.6 x 6.5 x 3.4 cm plate of crystals which are all in tabular crystals.  The contrast between the white calcites and the gemmy/ translucent siderites is very nice.  Lots of depth to this specimen which is not readily evident in the photos.  One siderite has a minor edge rub otherwise it is in fine condition.  Unknown mineral included the calcites.  Difficult to find this material.  A desirable and displayable specimen.  425$

 

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