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Mineral Specimens with Hematite
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3.6 x 2.9 x 2.6 cm. A sharp and lustrous hematite partially pseudomorphed after an octahedral magnetite crystal from a little-known find in Argentina. This artistic piece has textbook crystal form. As you can see, this crystal has retained a lot of the magnetite, as it easily remains attached to the magnet. Ex. David Stoudt Collection.
6.3 x 4 x 3.7 cm. A superb set of three highly-lustrous razor-sharp Hematite crystals. These gorgeous and complex crystals have faces that range from mirror-smooth to finely striated, all with a high luster. The largest Hematite crystal is an amazing 3.7 cm and all show unusual symmetry and form for the locality (many are squished short on one axis, whereas these are so equant). Ex. Charlie Key stock.
3.0 x 2.5 x 1.0 cm. An aesthetic and beautiful cluster of five, radial, golden starbursts of rutile needles epitaxial on mirror-bright, black hematite crystals from a recent find at Novo Horizonte, Brazil. The asymmetrically placed, but central starburst is beautiful.
7.5 x 4.1 x 2.6 cm. A striking and very aesthetic rutilated smoky quartz crystal cluster from Brazil. A gorgeous, golden, starburst of rutile blades epitaxial on hematite is enclosed and on an excellent group of sharp, glassy, water-clear, smoky quartz crystals. This is a beautiful, complete-all-around specimen.
21.4 x 19.0 x 9.1 cm. At 6.4 pounds, this would be a large and surprisingly pristine Tsumeb calcite even if it were just plain old typical white rhombs. But it is more interesting because of the very unusual oriented inclusions of hematite granules embedded within certain edges and edge corners. We call this a preferential coating or preferential deposition effect. In person it is very striking for the incredible geometry it creates, and the thin brown-red lines create a sharp boundary between the calcite rhombohedra which makes the whole piece more dramatic. Ex. Willy Israel Tsumeb Collection, purchased from Clive Queit in October of 1978.
8.6 x 2.9 x 2.7 cm. An excellent and very showy, doubly terminated, floater quartz crystal from the Messina Mine of South Africa and the Jaime Bird Collection. This translucent specimen has a glassy, sharp, primary termination and a broken, healed and regrown, multiple, secondary termination. Two-thirds of the crystal is encased in secondary, sidecar, quartz crystals. And there are two generations of iron oxides on this fine crystal: the hematite tinting giving the crystal the reddish-brown color; and the preferential coating of sparkly, specular hematite.
5.2 x 3.7 x 3.0 cm. An excellent hematite specimen dominated by a splendent, sharp, complete-all-around crystal. This well-striated specimen is from the historic iron mines of Elba Island, Italy. Classic material. Ex. Ed Ruggiero Collection of Dallas and certainly one of the last addtions to his collection, which spanned from the 1960s to late 1980s. According to his card, he purchased this piece on Elba Island, at a rock shop near Napoleon’s villa in May, 1987. Ex. Tarnowski Collection.
4.3 x 3.8 x 2.9 cm. A superb cluster of splendent, flat-topped, bullet-shaped hematite crystals from the Wessels Mine and the Charlie Key Collection. The multiple prism faces are sharp and some are beautifully striated. This is a complete-all-around and pristine cluster, which is nicely accented by preferential coatings of various thickness of micro andradite garnet crystals and two clusters of colorless, bladed baryte on the back of the piece. This is classic and outstanding Wessels hematite.
3.8 x 3.1 x 1.0 cm. An aesthetic and beautiful starburst of amazingly lustrous, golden rutile blades and needles epitaxial on mirror-bright, black hematite crystals from a recent find at Novo Horizonte, Brazil. The uneven starburst really adds character to this piece.
15.3 x 9.0 x 5.7 cm. A striking, two-sided, large cabinet specimen of glassy and lustrous, light blue celestine blades with chisel terminations from an uncommon locality in Tunisia. The blades are coated with starkly contrasting, rust-red hematite and lightly dusted with calcite microcrystals. This piece was collected in 1998 by Dan Weinrich and Don Edwards from a giant walk-in vug. These were initially misidentified as baryte. An XRF analysis on a typical specimen found it to be fairly pure SrSO4. Ex. Dr. Ed David Collection.
15.0 x 12.2 x 5.0 cm. An excellent, large cabinet calcite specimen from the N’Chwaning II Mine. Two clusters of lustrous, translucent, singly and doubly terminated calcite scalenohedrons are set on a banded hematite matrix covered with sparkly, calcite scalenohedral microcrystals. The calcite crystals have a pleasing light, rose-pink color. This is a large, highly representative example of the species and locale.
5.1 x 2.2 x 1.8 cm. A superb Wessels Mine miniature of splendent, very sharp hematite crystals richly and aesthetically set on a plate of massive hematite. The hematite crystals have preferentially striated faces which really adds to the character of this excellent piece. Classic, very fine material from this famous locale.
11.4 x 10.8 x 5.8 cm. A very attractive cabinet calcite specimen from recent finds at Santa Eulalia, Mexico. Sharp, lustrous, and translucent, dogtooth calcite crystals are partially coated with hematite and have striking, clay-stained, internal hematite phantoms. Crystals reach 7.0 cm on this piece.
2.0 x 0.5 x 1.5 cm (largest). A fine two-piece set of two hematite crystals from the Wessels Mine. Both crystals have splendent lustre and are bullet or conical-shaped. The larger crystal is doubly terminated and is nicely accented by blebs of starkly contrasting quartz. The little crystal is amazing. The large crystal is doubly terminated and the smaller "bullets" really add character. This piece also has accenting andradite microcrytals.
11.0 x 7.4 x 7.4 cm. Very glassy, lustrous, doubly-terminated, di-pyramidal, "beta-style" smoky quartz crystals are very richly and aesthetically scattered on both sides of the mounded cabinet matrix covered with sparkly, bladed, black hematite rosettes on this classic and showy specimen from the Florence Mine of Egremont, England. The quartz crystals reach 1.9 cm. They look like beta quartz (a special heat-induced and unusual crystallographic form of quartz) superficially but really are not, despite most of us thinking so. There is even a scattering of scintillating, specular hematite microcrystals. The matrix is massive hematite.
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Rob Lavinsky, rob@irocks.com
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share specimen![Hematite, Magnetite from Milagros, La Rioja, Argentina [db_pics/mdpics/MD-239945a.jpg]](db_pics/mdpics/MD-239945a.jpg)
![Hematite, Magnetite from Milagros, La Rioja, Argentina [db_pics/mdpics/MD-239945b.jpg]](db_pics/mdpics/MD-239945b.jpg)
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![Hematite, Andradite, Baryte from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-242675b.jpg]](db_pics/mdpics/MD-242675b.jpg)
![Rutile, Hematite from Novo Horizonte, Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-243327a.jpg]](db_pics/mdpics/MD-243327a.jpg)
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![Hematite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-243417a.jpg]](db_pics/mdpics/MD-243417a.jpg)
![Hematite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-243417b.jpg]](db_pics/mdpics/MD-243417b.jpg)
![Calcite, Hematite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-244248a.jpg]](db_pics/mdpics/MD-244248a.jpg)
![Hematite from Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-244262a.jpg]](db_pics/mdpics/MD-244262a.jpg)
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![Quartz, Hematite from Florence Mine, Egremont, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-244282b.jpg]](db_pics/mdpics/MD-244282b.jpg)