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Mineral Specimens with Quartz
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11.4 x 5.8 x 5.5 cm. An ornate and UNUSUALLY large "Oaxacamer" skeletal quartz crystal, complete and doubly-terminated. You see this sort of skeletal growth (hoppering) in crystals from Brazil and Brandberg occasionally as well - these are more uncommon, particularly of this size.
5.9 x 4.7 x 1.8 cm. A beautifully gemmy and lustrous, 4 mm, blood-red proustite crystal nicely sits in a vug atop a narrow, quartz-rich vein on this CLASSIC, OLD-TIMER from St. Andreasberg, Germany. The backside of the piece even has the wall rock attached to the quartz vein. A showy, highly representative specimen from this famous locality. From an old European collection assembled pre-1900.
7.7 x 2.8 x 1.9 cm. A gorgeous and striking Goboboseb Mountains amethyst/smoky specimen from the Charlie Key Collection. The water-clear quartz crystals have fabulous interior phantoms/shading and the complex terminations and striations on the side give amazing interior views on this very showy 360 degree piece. Pristine, except for minute edge wear on the sidecar crystal.
6.5 x 5.3 x 3.0 cm. A STRIKING and SHOWY specimen of two, translucent, yellow-green fluorite botryoids very aesthetically nestled in a vuggy quartz crystal matrix from the famous Mahodari Quarry of India. The fluorite botryoids reach 3.0 cm and they look just like egg yolks, especially the two generation-growth fluorite botryoid on the left. This is one of the few localities in the world for botryoidal, truly acrystalline, fluorite.
5.3 x 4.0 x 2.5 cm. An aesthetic rhodochrosite combination specimen from the famous and now-closed Sweet Home Mine. Lustrous and gemmy, cherry-red rhodochrosite rhombs to 1.3 cm are nicely set on the edge of the triangular-shaped matrix covered with needle quartz crystals and mirror-bright, striated, brassy pyrite cubes. The long quartz spear partially embedded in the large rhodo, with the bright pyrites in front is a joy to behold. This showy piece is from the Pincushion Pocket.
5.3 x 4.2 x 2.2 cm. A "fried-egg" fluorite, from this bizarre occurrence, which is actually truly botryoidal (meaning without crysatllization symmetry) in form. Beautiful color, translucency, and a nice perch on quartz make this a showy miniature. Ex. Charlie Key.
9.3 x 9.2 x 4.9 cm. A truly bizarre Indian mineral, with sharply zoned stilbite wheat sheaves the likes of which I have not seen. Charlie really loved Indian minerals and had a stash of unusual pieces, as you can see! These crystal sprays are pristine, have great lustre, and are notable for their 3-dimensionality popping up from matrix, which accentuates the color zoning. Ex. Charlie Key.
8.7 x 4.8 x 2.2 cm. A strange specimen of calcite-coated fluorite perched on amethyst. This is a rare association, and the stark contrast is beautiful and unusual. Ex. Charlie Key.
2.8 x 1.9 x 1.5 cm. A clear crystal of quartz in a bed of smaller crystals, shot through with glittering golden, acicular crystals of rutile.
4.3 x 4.2 x 3.6 cm. This would be a sensational example of Vera Cruz amethyst even it one of the two "V" crystals was not dramatically sceptred! Both crystals have the brightness and clarity that put these amethysts in the top ranks of worldwide amethysts, along with Brandberg and Guerrero.
7.9 x 7.9 x 6.9 cm. A specimen of reddish-brown quartz that has pseudormorphed a complete, uncontacted floater ball of giant aragonite crystals! One of these aragonites measures 3 cm across the termination! Look how striking and sculptural this specimen is. From the Argentina suite of the Dave Stoudt collection.
6.9 x 5.4 x 4.4 cm. A NEW FIND from the prolific Yaogangxian Mine - and a really unique one at that: a cluster of balls of faceted-looking pyrite, glittery and golden, on the tips of a densely-packed cluster of milky quartz crystals!
12.1 x 6.5 x 4.8 cm. What a spectacular and unusual crystal from Brandberg! It has not only unusually large size, but an amazing structure: a dramatic sceptre growing in one direction, and a complex architectural form in the other! The sceptre is actually one of two terminations at its end of the crystal; there is some tip damage on the sceptre, but I think this specimen is more about bizarre form and size than a pristine nature. The sceptre has that Brandberg gemminess about it, and the big end has isolated blushes of the smoky color amidst milky quartz. The faces have glassy luster.
29.1 x 17.2 x 6.1 cm. A LARGE CABINET specimen of quartz from a little-known African locality that you are unlikely to have seen specimens from before. On a large plate of matrix is a cluster stretching 13 cm across of fat, milky quartz crystals with isolated blushes of smoky and purple color. The crystals measure to 3.5 cm in height. BIG AND SHOWY, and again, for a quartz fan, a specimen from an unusual locality.
9.7 x 8.6 x 6.4 cm. A showy and excellent pseudomorph from recent finds at the famous Xianghualing Mine of China. Snow-white, sparkly quartz after calcite scalenohedrons are richly encrusted on glassy, translucent, sea-green fluorite. A few broken pseudos show that the crystals are hollow! This is indeed, a neat revelation, highlighting the pseudomorphing process of the calcite crystals by the quartz.
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Rob Lavinsky, rob@irocks.com
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share specimen![Quartz from Oaxaca, Mexico [db_pics/mdpics/MD-162770a.jpg]](db_pics/mdpics/MD-162770a.jpg)
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