Brazil Mineral Specimens
Brazil has supplied collectors with wonderful mineral specimens for decades. The gem material such as tourmaline, aquas and topaz receive most of the acclaim, however there are a great diversity of Brazilian minerals worth noting.
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OKH-976 Kyanite Barra do Salinas, Minas Gerais, Brazil. Ex Paul and Dawne Dunning Collection. An attractive example of this tanslucent/ transparent material in a quartz matrix. The crystal measures 10.1 cm and is crudely terminated having being broken from quartz. No damage and 11.5 x 3.2 x 2 cm. Very showy. $150
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OKH-781 Spessartine Escondido Mne, Conselheriro, Pena, Minas Gerais, Brazil. Ex. Paul and Dawne Dunning collection. A richly colored, translucent orange garnet sits alone on feldspar and mica. Tiny chipped garnet on edge. 2.1 x 2.1 x 1.7 cm overall. Attractive. $80
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OKH-771 Topaz Brazil. Ex. Paul and Dawne Dunning Collection. An attractive single crystal with excellent form and color. It measures 2.3 x 1.2 x 1 cm and is lightly striated, high in luster and in excellent condition. There are tiny chatter marks visible just with 10x that do not distract from the overall high quality of the piece. Gemmy with moderate internal fractures and inclusions. $95
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OKH-621 Rose Quartz Minas Gerais, Brazil. Ex. Paul and Dawne Dunning Collection. A nice large aesthetic example measuring 5.9 x 5.1 .3 .2 cm. It is composed of well formed crystals to over a centimeter each. Like most rose quartz specimens the crystals do tend to blend together. This piece however, does have some sculptural characteristics and does display well. He has a very high luster and the crystals showed good clarity. No damage except along one edge. Nice color saturation. A fine example. $420
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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
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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. $40
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OKH-385 Barite Jaoa Pessoa, Paraiba, Brazil. Ex. James Turek Collection. A fine damage free miniature from this prolific locale. This would have been an early specimen from the site. It is beautifully composed with a nice cluster of tabular barites to 1.7 cm on edge each. No peripheral damage or contacts (a floater with matrix). Gemmy and with nicely developed phantoms. 90$
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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$
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OKI-557 Spessartine Pederniera Mine, Sao Jose da Safira, Minas Gerais, Brazil. Ex. Dr. Steve Chamberlain Collection. 2.1 x 2 x 1.2 cm overall. Totally gem, deep red in color and highly modified in for. No damage to this floater. Well worth 40$
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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$
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OKI-596 Elbaite Virgem de Lapa, Brazil. Ex. Dr. Steve Chamberlain Collection. A well formed, lustrous, single terminated crystal with moderate striations. Gem throughout this pinkish amber colored crystal. It measures 1.8 x .6 x .3 cm overall. Cute. 30$
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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$
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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$
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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$
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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$
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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$
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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$
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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$
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OKI-555 Elbaite Minas Gerais, Brazil. A single translucent to transparent crystal of a rich green color measuring 1.7 x .7 x .6 cm. good form, mild striations and minor termination edge chipping. Cute, affordable tourmaline. 30$
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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$
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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$
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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$
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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$
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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$
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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$
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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$
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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. 85$
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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
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OKF-341 Hematite pseudo. after Magnetite. 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
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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
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OKF-185 Tourmaline Bama de Soliso, Minas Gerais, Brazil. Ex. Nancy Collins collection. The single crystal seen here measures 1.4 cm in length has moderate striations and is totally gem with only one small internal fracture near the termination of the crystal. The piece is an rich indicolite blue color and highly aesthetic. $100
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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
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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
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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. $150
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OKF-125 Siderite and Dolomite Minas Gerais, Brazil. Ex. Nancy Collins Collection. 6.6 x 6.5 x 3.4 cm plate of crystals which are all in tabular crystals. The contrast between the white calcites and the gemmy/ translucent siderites is very nice. Lots of depth to this specimen which is not readily evident in the photos. One siderite has a minor edge rub otherwise it is in fine condition. Unknown mineral included the calcites. Difficult to find this material. A desirable and displayable specimen. 425$
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OKD-769 Watermelon Tourmaline Minas Gerais, Brazil. Ex. Jim Turek Collection. A nice 4.4 cm long and 2 cm thick watermelon tourmaline with one end crudely regrown and the second broken showing the bright red core surrounded by green. Several tightly attached rider crystals to 3 cm each. Good, classic material. 200$
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OKD-770 Hematite Minas Gerais, Brazil. Ex. Jim Turek Collection. A fine cluster of bright silver hematite crystals to 1.7 cm each. They are not tabular. These are thick blocky crystals with a complex habit. The specimen measures 4.7 x 3.2 x 2.2 cm overall and is somewhat dome shaped. A few micro dings but actually in extremely good condition. Very sharp and displayable. 125$
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OKD-251 Quartz, Siderite, Pyrrhotite Morro Vehlo Gold Mine, Minas Gerais, Brazil. Ex. Dr. Steve Chamberlain Collection. Here is another highly aesthetic miniature composed of several clear quartz points to over 3 cm each rising off of a flat quartz matrix. Also rising off this matrix are well formed blades of siderite to 1.7 cm each. Within and on these crystals are tiny metallic tabular pyrrhotite crystals to a couple of millimeters each. It measures 5 x 3.5 x 2.5 cm and the body of the piece is damage free. There is one siderite crystal on the extreme edge that has been cleaved off. A showy, older specimen. 100$
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OKD-466 Rose Quartz on Milky Quartz Minas Gerias, Brazil. Second generation rose quartz crystals are set high on the matrix of crystallized milky quartz in a thick band visible from all sides of this fine specimen. A very large specimen from this famous producer of rare rose quartz crystals which measures 9.3 x 7 x 6 cm overall with individual crystals to 1.6 cm. There is some very minor damage which does not distract from the display characteristic which make this a highly aesthetic and very desirable specimen (but it has been taken into account when it comes to the specimen’s price). Sits nicely for display, super luster and wonderful form. This specimen has great views from all directions except one side. 1,400$
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OKD-537 Rose Quartz Crystals Espirto Satato, Brazil. Cute little 2.3 x 2.2 x 2 cm specimen composed of lots of pink quartz crystals. Crystals to 1.6 cm. Nice clean specimen. 70$
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OKD-538 Rose Quartz Crystal Espirto Satato, Brazil. 4.2 x 2.5 x 2.2 cm cluster with crystals to 1 cm each. Small book of mica on back of specimen. Damage free and attractive. 150$
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OKD-522 Tourmaline Santa Rosa, Brazil. Ex. Nancy Collins Collection. Here is a blue tourmaline, indicolite, seldom seen for sale today. These normally get cut into gemstones. This one is not large but does have lots of character. It is made of three parallel growth crystals which are all damage free and nicely terminated. The surface hillocks on the terminations are very interesting. Zoned growth has lead to a clear cap and translucent lower section to each crystal. 2.3 x 1.9 cm. Excellent specimen! 220$
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OKD-461 Kunzite near Governador Valadares, Minas Gerais, Brazil. This crystal has a pleasant purple, pink cast, nice clarity and an attractive form. Deep purple color when viewed down the “c” axis. The chisel shaped termination is slightly rounded due to natural etching. Minor surface etching, as well. 6 x 1.5 x .7 cm. A nice gem crystal for only 80$
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OKD-464 Tourmaline Minas Gerais, Brazil. A very aesthetic grouping of crystal composed of two primary crystals measuring 4.1 and 4.3 cm each. Overall the specimen measures 5.5 x 3 x 1.7 cm. Bodies of the crystals are a light blue in color and capped by a pleasant pink tone. Basil contact on crystals. No damage. Great looking bi-colored tourmaline. This piece really draws you eye! 500$
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OKD-363 Tourmaline Virgen De Santa Rosa, Minas Gerias, Brazil. Ex. Nancy Collins Collection. This big grouping of tourmalines is composed primarily of three big crystals which have thousands of tiny, gem and fibrous tourmaline crystals networking between them. The color is an unusual, almost metallic, green color. The terminations on the big crystals are hollow and also filled by fibrous crystals. Minor matrix contact and zero damage. Although it looks delicate, it is not and is easy to handle and inspect. 9 x 7 x 5.5 cm overall. A very interesting, large tourmaline. 570$
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OKD-327 Tourmaline Resplendor Mine, Minas Gerais, Brazil. Ex. Nancy Collins Collection. 5.2 cm long by 2 cm wide double terminated bi-colored crystal. Pinicoid and complex termination (hemimorphic), both of which are pink, and are well formed. Central zone of crystal is a fine deep, transparent green with typical inclusions. Stocky and with good luster. Another excellent specimen that is damage free and displays wonderfully. 625$
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OKD-322 Tourmaline Cruzeeiro Mine, Sao Jose de Safira, Minas Gerais, Brazil. Ex. Nancy Collins Collection. Fine pencil, bi-colored tourmaline. This piece is 7.2 cm long with pink composing the outer layer of the crystal and the upper 40 % of its length. The lower section has a well formed phantom of green and this makes up the remaining 60% of the crystal. Pinicoidal termination has very tiny ding visible with magnification but not noticeable to the naked eye. Nicely transparent (much more so than the photo indicates). A high quality piece which receives high points for aesthetics. A very competitive price for a toumaline of this quality. 590$
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OKD-323 Tourmaline Minas Gerais, Brazil. Ex. Nancy Collins Collection. Nice large 8.9 cm long and 4.5 cm wide crystal with a highly unusual color. Outer rind is very light green which allows you to see to into a deeper green core. This layering gives the piece an almost metallic effect. The upper termination is a pinicoids of very low luster and rough appearance. The lower end of the specimen is very fibrous. The back of the piece is very complex with a number of cavernous areas and fibrous growth. The main body of the piece is composed of several large parallel growth crystals. Both ends of the piece have a darker cap. Damage free. A very interesting and certainly substantial specimen. 950$
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OKD-130 Topaz Minas Gerais, Brazil. Light blue alluvial topaz crystal which has water worn frosting on all sides but one. Faces are clearly evident. The one clear face shows this to be a gem crystal with moderate internal fracturing. 3 x 3 x 2.5 cm crystal. 38$
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OKD-131 Topaz Minas Gerais, Brazil. 24.6 gram, clear gem crystal with a few minor internal inclusions. Chip on top and back is poor. Excellent form and nice from front. 2.5 x 2.5 x 2.2 cm. 38$
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OKD-126 Uvite and Magnesite Brumado, Bahia. Ex. Carlo Barbosa material. Really nice damage free, double terminated, translucent crystal with gemmy sections. Base has a crystal contact that wont show from any view because the specimen sits on it. One area has minor skeletal growth. Very nice piece. 95$
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OKD-285 Spodumene RESERVED Minas Gerais, Brazil. This etched crystal of spodumene is a real winner: nice yellow color, good double termination, excellent gemmy clarity and some good heft. It measures 11 cm long, 3.7 cm wide and 2.3 cm thick. A fine value on an aesthetic crystal, an exceptional value if used as gem rough. 165$
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OKD-027 Aquamarine North Rio Prov., Brazil 4.7 long by 2.6 cm wide and 1.4 cm thick. Nice crystal with a complex termination. Contact on backside. Quite gemmy down the “C” axis but otherwise lots of inclusions. Not quite as deep a blue as the photo indicates. 90$
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OKB-534 Elbaite on Quartz Pseudomorph of Tourmaline Aruba Mine, Minas Gerais, Brazil. These specimens began as tourmalines, were replaced by quartz and then coated by elbaite. The cap of this one has no quartz core and is elbaite for almost a cm of its top. This is the nicest I could find out of the 15 specimens purchased. 6.6 cm tall and 2.5 cm thick. Back is not damaged.. crystal is scalloped in form. Several chips on termination but still a great value on a two and 3/4 inch tourmaline. Very impressive. 225$
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OKB-535 Elbaite on Quartz Pseudomorph of Tourmaline Aruba Mine, Minas Gerais, Brazil. These specimens began as tourmalines, were replaced by quartz and then coated by elbaite. The cap of this one has no quartz core and is elbaite for almost a cm of its top. 4.7 cm tall and 1.8 cm thick. A couple areas show the elbaite stripped away and the quartz core visible. 95$
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OKB-536 Elbaite on Quartz Pseudomorph of Tourmaline Aruba Mine, Minas Gerais, Brazil. These specimens began as tourmalines, were replaced by quartz and then coated by elbaite. 5.5 cm tall and 2 cm thick. Very nice form to this one. A couple chips on termination but still an excellent value on a two plus inch tourmaline. Very impressive. 170$
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OKA-418 Dravite Paraiba, Brazil. Approx. 10 brownish black crystals to 2 cm each in mica schist. Minor translucence in spots, but opaque for the most part. Great luster and form. 20$
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OKA-826 Muscovite/ Apatite Jose Pinto Mine, M. G. Brazil. Same as above specimen with the addition of a green apatite crystal ( 2.5 cm). This cluster is 8.5 x 6 cm. 28$
