International Minerals 19

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CM30 - Dioptase - 650€
Renéville Mine, Renéville, Pool Department, Republic of Congo
Size: 7 x 4.1 x 3.5 cm
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The overall shape reminds of an amethyst geode only that here it is sparkling green dioptase of fantastic quality and color! The dioptase comes as cubical crystals up to around 1 cm on edge, is gemmy and shows best possible luster! The vug-shape of this specimen is characteristic for the classic locale, an old copper mine that is closed for nearly a hundred years now. A very fine and classic piece of best quality dioptase from the more uncommon African locale!

FJ10 - Spessartine - 4800€
Navegadora claim, Conselheiro Pena, Doce valley, Minas Gerais, Brazil
Size: 7 x 5.6 x 4.6 cm
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Incredible, juicy, cranberry-red color radiates from this fine specimen even at low light, waiting to explode at direct illumination. The massive crystal is quite dark due to its thickness and some internal cracks but downlight definitely does the trick and reveals the gemmy blood-red crystal!
The spessartine is a complete floater and associated with some quartz, muscovite and white feldspar, probably cleavelandite. It is an exceptional piece that shows the fantastic quality the Navegadora claim is famous for. Even at close inspection I could fine only one small chip at the side, not more than 5 mm long and almost impossible to detect. This is a great, massive spessartine of superb aesthetics that exists only to present its beautiful surface structure and incredible red color!

GA12 - Gold - 1750€
Serra do Caldeirão, Pontes e Lacerda, Mato Grosso, Brazil
Size: 2.9 x 1.1 x 1 cm
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A thumbnail specimen from the legendary finds in Pontes e Lacerda that strikes with its rather unusual shape, featuring particularly sharp crystals! Shaped like a twig this piece appears all organic and lovely in a 3-dimensional way. Color and luster are well enough though I have admittedly seen better. The sharp crystals on the other hand are exceptional and as there is no damage or contact. This is a spotless choice from this outstanding locale!

RT37 - Tourmaline with Quartz - 8700€
Bevoandrano pegmatite, Ikalamavony District, Fianarantsoa Province, Madagascar
Size: 6.2 x 5.8 x 3.2 cm
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The pictures of this impressive tourmaline largely speak for themselves. The specimen shows very intensive, gemmy apple green coloring with a pink sugar crusting. The tourmaline is nicely attached to a translucent white quartz making for pure textbook aesthetics. This nice piece is out of a find in Bevoandrano pegmatite, Madagascar. The piece is complete all around with a re-healed bottom and a perfect slanted termination. Even at low light this specimen cuts a fine figure but the direct backlight releases a flash of bright green. A fantastic piece of comfy hand-size and brilliant quality!

AT68 - Tetrahedrite and Pyrite with Quartz - 365€
Mundo Nuevo Mine, Mundo Nuevo, Huamachuco, Sanchez Carrion, La Libertad, Peru
Size: 5.4 x 3.8 x 3.7 cm
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This is a cluster of sharp metallic tetrahedrite in association with pyrite and quartz. The piece is in very good shape with only some very minor edge-wear. The largest tetrahedrite is 2.8 cm on edge and flawless. The tetrahedrite cluster sits on some golden shining pyrite and is associated with white quartz crystals. A very attractive and much characteristic paragenesis from the Mundo Nuevo Mine with a direct focus to the tetrahedrite!

TA26 - Enargite - 3000€
Cerro de Pasco, Pasco province, Pasco department, Peru
Size: 7.2 x 5.5 x 3 cm
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This highly attractive specimen of enargite atop a matrix of quartz and small lustrous pyrite crystals was found about 1950 in the ancient mines of Cerro de Pasco by an Italian mining geologist working at that time for the respective mining company. It is published in the book "Peru - Paradise of Minerals" by Jaroslav Hyrsl, page 322.
The main crystal is 4.7 cm long and 2.5 cm across. It is perfectly arranged on the contrasting white matrix to form this piece of perfect aesthetics! The surface is vertically striated and shows nice tempering colors from dove blue to rust red. The mines of Peru have produced some of the finest enargite specimens and this is without question one of the most striking ones!

MA30 - Pyrite - 4800€
Huanzala Mine, Dos de Mayo Province, Huánuco Department, Peru
Size: 14.5 x 10 x 8 cm
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It is an absolutely impressive piece from the famous Huanzala Mine with a totally exceptional shape. The massive pyrite is complete all around, free of any damage and shows best golden luster. The body of this surprisingly lively piece is a cluster of octahedral pyrite crystals of unusual growth. While the crystals are sharp and smooth along the edges, all the faces in between are an assembly of countless microfaces and thus show a grainy yet completely flawless and stunningly beautiful structure. Emerging from the top of this cluster grows a bulge of octahedral crystals with fascinating mirroring faces and completely unique appearance. The quality of this whole specimen is just perfect on all sides. I have seen many pyrites coming from the Huanzala Mine but yet nothing alike this mind-blowing specimen!

CM56 - Elbaite - SOLD
Pederneira Mine, São José da Safira, Doce valley, Minas Gerais, Brazil
Size: 11.1 x 1 x 0.8 cm
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Pristine wet-look luster covers this completely gemmy single elbaite crystal! The color ranges from a lovely turquoise to an increasingly dark emerald green and ends in an almost opaque termination. The termination is pointed and sharp yet has some damage along the edge. Still the fantastic quality of this crystal more than makes up for this minor flaw and makes this an impressive single crystal specimen!

IX5 - Hematite ps. Magnetite - 300€
Payún volcano, Altiplano de Payún Matru, Malargüe Department, Mendoza, Argentina
Size: 6.1 x 2.8 x 1.5 cm
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Characteristic for this unusual finds and the cinder pits near the Payún Matru volcano this specimen is a floater specimen of hematite, pseudomorph after magnetite. The well developed shape shows towering octahedrons with hoppered growth, covered in a layer of sand-papery hematite microcrystals. A small patch at the tip of the larger crystal shows a natural brick red hematite crust but no damage at all. A very distinct and elegant piece with no downsides!

FA306 - Calcite - 1650€
Elmwood Mine, Carthage, Smith Co., Tennessee, USA
Size: 16.9 x 11.2 x 9.7 cm
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A large cluster of brilliant scalenohedral calcite that is crystallized on all sides. Only the bottom is contacted, the rest is all complete and in near perfect condition. Several doubly terminated crystals, the largest of which is 12.5 cm long(!), are sitting atop a more massive but evenly sparkling calcite body. The mostly transparent crystals are milky white at the inside but intensively orange-brown "cognac" colored at the completely gemmy edges. An imposing, characteristic specimen for the famous Elmwood Mine, one of the worlds best localities for high class calcite!

AK1 - Chalcopyrite with Siderite - 960€
Kaiwu Mine, Hezhang Co., Bijie Prefecture, Guizhou Province, China
Size: 7.9 x 5.6 x 3.6 cm
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Recent explorations in China have lead to a find of bright golden chalcopyrite in association with siderite at a new locale, called the Kaiwu Mine. This specimen features a cluster of sharp tetrahedral chalcopyrite on a bed of lustrous brown siderite all in very good condition with only some peripheral issues. The aesthetics of this piece is exceptional and catchy. A lovely piece of great quality and appealing composition!

RT30 - Liddicoatite - 9500€
Ambararata, Tsitondroina Commune, Ikalamavony Pegmatite Field, Fianarantsoa Province, Madagascar
Size: 7.1 x 3.6 x 3.2 cm
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A high quality piece from Ambararata, Madagascar that strikes through its exceptionally nice color zoning. The specimen plays colors from white to salmon pink and mossy green to golden yellow at the termination. While the lower part is quite dark and needs strong light from the back, the upper third shows lovely open colors. At the front you can see some associated white albite adding even more to the beauty of this great piece. The main crystal has a unusually sharp and very well developed termination with great luster. You will not find any damage here, even the more fragile albite is in perfect condition!

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