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 Fluorite with Quartz Specimen #072011-1 Deer Trail Mine Marysvale, Utah 11.7 x 5.2 x 3.2cm Cabinet $50 This specimen consists of matrix that plays is covered by snow white quartz xls to several mm that host a mass of sea foam green octahedral fluorite xls to 1.8cm. Some minor dings to the periphery of the specimen, but otherwise intact. I haven't seen many a specimen from this locale, so this may be a good one for all of you fluorite collectors.  |
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Hematite Specimen #072011-2 Crowders Mountain State Park Cherryville, Gaston County North Carolina 10.4 x 8.0 x 2.7cm Cabinet $45 This specimen consists of matrix that is covered by iridescent hematite xls. Some minor flaking of some of the xls. |
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 Hematite after Marcasite Specimen #072011-3 White Desert Faratra, Oasis Egypt 4.2 x 3.8 x 3.0cm Large Miniature $49 This is one cool rock. It started out as an unusually shaped (star burst) marcasite xl that was then replaced by hematite. The specimen almost feels like it has a waxy coating when I handle it. It appears to be a floater and is intact with no outward signs of damage. |
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Heulandite Specimen #072011-4 Sakur India 6.3 x 4.8 x 3.5cm Large Miniature $65 I'm not sure if I've ever seen such an unusually shaped heulandite specimen from India before. I detect no damage and I'll let the pictures speak for themselves. A very interesting specimen indeed. Enjoy! |
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Dendritic Malachite in Baryte Specimen #072011-5 Mid Atlas Mountains Atlas Mountains Morocco 10.0 x 5.0 x 0.9cm Cabinet $95 This specimen consists of a cut slab of baryte that plays host to numerous dendritic malachite xls. There are also a number of brownish xls on this piece which appear to be copper, but I cannot say for sure. This is one cool rock. |
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Meyerhofferite Specimen #072011-6 Mt. Blanco Death Valley, California 4.0 x 3.2 x 1.2cm Miniature Type Locality Ex A. L McGuinness Collection $125 Meyerhofferite is a hydrated borate mineral, and occurs principally as an alteration product of inyoite, another borate mineral. Natural meyerhofferite was discovered in 1914 in Death Valley, California. It is named for German chemist Wilhelm Meyerhoffer (1864-1906), collaborator with J. H. Hoff on the composition and origin of saline minerals. This specimen is nearly completely intact and much more interesting in person than my photos portray. This specimen was part of the A.L McGuinness Collection. To read a biography of Mr. McGuinness, please click here to go to Mindat's on-line biographies. |
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Psilomelane Specimen #072011-7 Touissit Oujda Province Morocco 8.0 x 3.2 x 1.2cm Small Cabinet $65 Psilomelane is an obsolete group name for hard black manganese oxides (cryptomelane-group minerals such as hollandite, cryptomelane, ..., but also romanechite, etc.). This strange specimen consists of a stalactitic group of botryoidal xls forming what looks like ............? You fill in the blank. One minor cleave, but otherwise intact. Weird piece. |
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Octahedral Pyrite with Magnetite Specimen #072011-8 Brosso Torino Province Piedmont Italy 5.0 x 3.7 x 2.8cm Large Miniature $40 This combination piece consists of lustrous to metallic looking octahedral magnetite xls with a number of inter grown pyramidal to octahedral pyrite xls. The pyrite xls are quite lustrous and really give this piece some pop. Minor fraying around the periphery of this piece but all the major xls are intact. Enjoy! |
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Tangerine Quartz Geode with Calcite Specimen #072011-9 "Spirit Cave" Candela Mine Candeleria Mountains Chihuahua, Mexico 4.5 x 4.0 x 2.8cm Large Miniature Fluorescent $45 This is a somewhat unusual and quite attractive specimen in my opinion. It appears to have been a geode which was subsequently opened to reveal these contents. The largest cluster is composed of calcite xls and I would best compare them to a sunflower with somewhat altered and rounded leaves and a botryoidal center. This mass glows neon green under SW UV light. Adjacent to this "flower" are a couple of almost botryoidal quartz masses, one which is tangerine colored, due probably to staining by hematite. You really have to look this specimen over closely to truly appreciate it. No damage that I can detect. Enjoy! |
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Rhodochrosite, Quartz and Siderite Specimen #072011-10 Manuelita Mine Morococha District Yauli Province Junín Department Peru 6.9 x 5.7 x 4.0cm Small Cabinet $75 This specimen consists of a mass of globular matrix that has been covered by a coating of bright pink mini rhodochrosite rhombs along with numerous milky to water clear quartz xls to 1.4cm. Sprinkled on top of many of the quartz xls are micro siderite xls. Some minor edge fray to the specimen, but otherwise intact. |
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Native Wire Silver Specimen #072011-11 Mun. de Batopilas Chihuahua Mexico 2.8 x 1.5 x 0.9cm Miniature $125 This specimen consists of a calcite matrix that plays host to a mass of native silver wires which have formed in a herringbone pattern. A very interesting mineral specimen displaying no damage. Enjoy! |
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Thenardite Specimen #072011-12 Searles Lake San Bernardino Co. California 11.7 x 10.5 x 3.1cm Cabinet $95 Thenardite is an anhydrous sodium sulfate mineral, Na2SO4 which occurs in arid evaporite environments. It also occurs in dry caves and old mine workings as an efflorescence and as a crusty deposit around fumaroles. It occurs in volcanic caves on Mt. Etna, Italy and was named after the French chemist, Louis Jacques Thénard (1777–1826). Thenardite crystallizes in the orthorhombic system and often forms yellowish, reddish to gray white prismatic crystals although usually in massive crust deposits. Thenardite is fluorescent white in short-wave and yellow green in long wave UV. In humid conditions, thenardite gradually absorbs water and converts to the mineral mirabilite, Na2SO4·10H2O.I would best describe this specimen as an aggregation of crusty plates of salt crusts. It is pale yellow in color and can easily crumble if improperly handled. I will insure this specimen for shipment due to its somewhat fragile nature. |
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Torbernite Specimen #072011-13 Musonoi Mine Kolwezi, Katanga Copper Crescent, Katanga (Shaba) Democratic Republic of Congo (Zaïre) 4.5 x 3.7 x 2.5cm Large Miniature Mildly Radioactive $85 Torbernite, whose name derives from the Swedish chemist Torbern Bergmanradioactive, hydrated green copper uranyl phosphate mineral, found in granites and other uranium-bearing deposits as a secondary mineral. Torbernite is isostructural with the related uranium mineral, autunite. This specimen consists of a matrix piece that displays a small vug which is nearly completely lined with candy apple green xls to 3mm which are tabular and remind me of window panes. Minor dings. Care should used in the handling and storing of this specimen. |
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Tourmaline var. Rubellite with Calcite Specimen #072011-14 Pyi-Gyi-Taung Mountain near Let-Pan-Hla Village Madalay District Burma (Myanmar) 3.8 x 2.2 x 1.5cm Miniature $65 This specimen consists of a mass of gemmy, lavender colored rubelite xls to 1.2cm, intertwined with a number of massive, water clear calcite xls which fluoresce pale orange under SW UV light. Some minor dings, but otherwise intact. Colorful specimen. |
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Vanadinite on Goethite Specimen #072011-15 Atlas Mountains Morocco 2.0 x 1.7 x 1.5cm Thumbnail $55 This specimen consists of a mass of goethite xls, somewhat reminiscent of a stalactite. Scattered over the top of the goethite xls are coca cola colored, stop sign shaped vanadinite xls to 5mm. No damage. |
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Vanadinite on Goethite Specimen #072011-16 Atlas Mountains Morocco 3.0 x 1.2 x 0.8cm Large Thumbnail $45 This specimen consists of a mass of goethite xls, somewhat reminiscent of a stalactite. Scattered over the top of the goethite xls are coca cola colored, stop sign shaped vanadinite xls to 5mm. No damage. |
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