Brazil Mineral Specimens For Sale, Page 2



                  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.







Back or bottom

Top termination

Base termination

OKM-820     Quartz   Brazil.        Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 83 By Harold Dibble.  This fine specimen is a full page figure in Harold's book, and an impressive quartz specimen in and of itself.  It is a floater measuring 17.6 x 11 x 7.5 cm.  The crystal is double terminated, has a medium to high luster on it's upper display surfaces and a lower luster on what I would call its base (back side).  There are several chips as seen in the images so it is in good, not great shape.  The surface growth features are quite amazing and even better in person.  Everything here is in parallel growth on the one crystal.  $1,200










OKM-802    Tourmaline    Cruzeiro Mine, Minas Gerais, Brazil.    Ex. Harold L. Dibble collection.  A rich deep green, baseball shaped primary crystal with with two partial crystal attachments.  The piece measures 6.6 x 2.5 x 2 cm.  Nice luster, fibrous termination and prism surfaces.  Nice.  $350








OKM-199    Spessartine     Navegador Mine, Conselheriro, Pena, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  3.5 x 1.6 x .7 cm floater with nice aesthetics.  Very tiny chip one side.  Good views all around, high luster.  Mounted on an acrylic plate.  $65







The two black marks show the length of travel of the enhydro. They have been washed of the specimen.

The enhydro moves between the two black marks on the crystal. 4.5 cm total.

Enhydro just below the line. The enhydo bubble is 1 cm+ in length.

OKM-178        Polished Quartz with Large Enhydro     Brazil.    Ex. Harold L. Dibble collection.  Very large, over a cm, bubble travels 4.5 cm within this mobile enhydro. 8.9 x 4.7 x 4.2 cm piece polished on all side.  No damage.  The black lines are completely washed off.  Sits nicely.  Outstanding for what it is.  $450 









OKM-174    Beryl     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Termination is smooth and transparent likely due to polishing.  Every second face (alternating faces on prism) has micro mica crystals embedded in it giving them a frosted appearance.  One large inclusion is a mica otherwise very gemmy internally.  8.2 x 2.6 x 2.3 cm.  Light green color.  Good luster on most faces.  Minor chipping on stepped termination seen in last image. $800










OKM-155    Adularia    Morro Redondo, Minas Gerais Brazil.  Ex. Harold L. Dibble collection.  A huge single crystal of chalk white color.  The luster varies face to face but none are exceptionally high.  Excellent form.  Thin crack (natural) running down the center.  Two corners have cleaves but these could be displayed downward.  The unusual size and uncommonness of the material still make it a desirable specimen that displays nicely.   $325









OKN-323     Rose Quartz    Rio Grande de Sol, San Gabriel, Brazil.  Ex. Harold L. Dibble collection.  Classic material in a fine example on dull white quartz.  The rose quartz is bright and colorful forming a partial hexagonal overgrowth on the first quartz crystal. The rose quartz covers 6.1 x 2.7 cm of area and the piece measures 8.5 x 4.9 x 4.2 cm overall.  The rose quartz is free of damage.  $350









OKN-336      Quartz    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  7.5 x 7.2 x 6.5 cm cluster with a flat base.  An aesthetic spray of clear crystals with excellent luster.  One chipped crystal on side (or back).  Very high quality.  $95









OKN-431      Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A cluster of nice quartz points with overgrowths of a second generation of much smaller, double terminated, quartz crystals.  All crystals are clear to slightly milky and of very high luster.  One matrix contact and one very small piece of attached matrix.  No damage.  Really nice quality quartz specimen.  10 x 8.8 x 5.5 cm.  $275








OKN-426      Quartz     Rio Grande do Soul, Brazil.  Ex. Harold L. Dibble collection.  Unusual stalactites of light pink quartz standing off a quartz matrix and all leaning in one slanted direction.  The stalactites have green cores and a feathery appearance that is attractive.  The luster is excellent and there is no damage present.  A substantial plate measuring 11 x 9.2 x 5 cm.  Excellent and unusual quartz specimen.   $400   








OKN-416    Calcite on Amethyst     Irai, Rio Grande, Brazil.  Ex. Harold L. Dibble collection.  This large cabinet specimen is a partial vug of light colored amethyst crystals containing an acicular group of calcites attached to its base.  The calcites are reattached as a single group to the matrix but the final product displays as a damage free specimen with high aesthetics (from the side or back with magnification one can see it is repaired, third image).  It measures 22 x 15.5 x 8 cm overall with calcites to 7 cm.  The long thin calcites show no damage nor does the fine cathedral of quartz it resides in.  Due to the repair I will offer this at a lower than expected price.  $500









OKM-869    Rutile on Hematite    Novo Horizonte, Bahia, Brazil.  Ex. Harold L. Dibble collection.  A single blade measuring 2.7 x 1.7 x .2 cm.  Minor chips.  $25









OKM-861    Apatite    Golconda Mine, Marilac, Mnas Gerais, Brazil.  Ex. Harold L. Dibble collection.  3 x 1.7 x 1.5 specimen with colorful welled formed crystals having good transparency.  Damage on both sides as seen. $15









OKM-831    Beryl    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A very clear beryl crystal that is obviously entirely etched.  6 x 4 x 2.8 cm.  Floater with small cleave on on termination (bottom in all images).  Excellent condition, nice luster, aesthetic form for those who like etched crystals.  $225









OKM-826     Spessartine with Feldspar     Navegador Mine, Conselheriro Pena, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  This is a large, highly etched single crystal with many of the etched voids mineralized by a white feldspar.  3.9 x 3.1 x 2.7 cm.  No damage.  $250








OKM-748    Uvite and Calcite    Brumado, Bahia.  Ex Carlos Barbosa.  5 x 5 x 1.8 cm floater with no damage!  Tiny gemmy bright green tourmaline crystals and flat (disc shaped) calcites.  Nice.  $40








OKM-817     Tourmaline   SOLD    Himalaya Mine, Mesa Grande, California.  Ex. Harold L. Dibble collection.  An attractive display piece of excellent color...deep purple, and gemmy through core and base, mild green middle and pink termination.  The crystal measures 9.5 x 3.1 x 2.8 cm overall.  It is highly striated and has a compound termination as can be seen.  The luster is excellent over entire piece.  There is damage along two sides as seen in the images.  It is enough to warrant the price asked here.  $700











OKM-126     Quartz    Galileia, Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  FIGURED SPECIMEN from the book, Quartz: An Introduction to Crystalline Quartz, page 80  By Harold Dibble.  This is a complex shard from a very large crystal showing parallel growth of surface features.  Damage free floater.  Interesting to look at and much of it is clear with a slight smoky tint.  Glassier looking than the photos seem to indicate.  9.1 x 5.1 x 1.3 cm.  $225










OKM-127     Quartz      Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  A 10.4 x 6 x 5.3 cm single crystal.  Healed surfaces, no damage.  Front very nice with secondary quartz that is glassy and slightly smoky over an original, ugly, crystal.  Muscovite sticking out on one side in lower region of crystal.  Stands for display.  Nice.  $200











OKM-128    Tourmaline    Brazil.  Ex. Harold L. Dibble collection.  Wish I had a better location but that is all there was and I'm just not positive on where it is from.  It is a substantial specimen, however, measuring 14.4 x 5.1 x 3 cm, 268 grams.  It is a shard from a much larger crystal, single terminated, and a combination of colors.  The luster is very high and there is no damage to the display surface.  The color is most evident when back lit and it ranges from a medium red to a nice blue.  An attractive specimen.  $400









OKM-130    Quartz   RESERVED    Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Another crystal shard that is fully healed with complex surface features on both sides.  Gemmy internally.  One chip.  $175









Large Enhydro.

Large Enhydro.

OKM-131    Quartz     Minas Gerais, Brazil.  Ex. Harold L. Dibble collection.  Beautiful "window quartz" with clay inclusions.  A huge ENHYDRO in this one.  The bubble when stretched out and moving is about a cm long.  It moves about 2.5 cm within a triangular shaped opening.  It is near the surface and can not be missed!  Strong base contact, otherwise in good shape.  The internal features are numerous and not something I can show well in photos.  Great piece.  $395









OKM-123    Morganite    Minas Gerais, Brazil.    Ex. Harold L. Dibble collection.  A good specimen of this difficult to get material.  Front side is first photo showing only one tiny chip.  Back side has numerous chips.  Front and back are modified and those faces are striated (rather unusual).  The striations are obvious on the back and very light on the front.  The single crystal was once on clevelandite and some remains embedded in it's base.  Some black tourmaline inclusions but much of the internal material is gem or gem material with fracturing.  The piece measures a healthy 10.5 x 6 x 3 cm.    $2,500









OKM-121     Tourmaline, Quartz, Muscovite     Virgem da Lapa, Minas Gerais, Brazil.    Ex. Harold L. Dibble collection.  An interesting piece that was likely a floater.  Many tourmalines of various colors and subtle shades, ...pinks and greens dominate.  Most crystals are nicely terminated but several are broken off.  Still an interesting and uncommon find.  There is one chip on the double terminated quartz crystal.  Tourmalines to 4.5 cm each.  Piece measures 9.2 x 5.2 x 4 cm.  Displays nicely.  $450




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