selections from the
RICHARD HECK
MEXICO COLLECTION


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HECK-114 - Mimetite on Calcite - $ 450
Santa Eulalia, Chihuahua, Mexico

miniature, 4.5 x 3.8 x 3.0 cm
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Mimetite on Calcite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK114a.jpg]
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Mimetite on Calcite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK114b.jpg]
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Mimetite on Calcite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK114c.jpg]
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Mimetite on Calcite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK114d.jpg]

This piece has more 3-dimensionality and "airiness" to it than usually seen in the material, which tends towards massive agglomerations of mimetite rather than to aesthetics. Contrasting in form and color with its accent, the lustrous and translucent, sharp white calcite rhomb of 1.8-cm-across, is a cluster of lustrous, translucent, amber-colored mimetite crystals, to 8 mm in length. Not to be confused with later finds at San Pedro Correlitos, this is an old classic


HECK-113 - Calcite included by Hematite (Twinned) - $ 300
Santa Eulalia, Chihuahua, Mexico

miniature, 4.9 x 4.1 x 3.5 cm
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Calcite included by Hematite (Twinned) from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK113a.jpg]
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Calcite included by Hematite (Twinned) from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK113b.jpg]
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Calcite included by Hematite (Twinned) from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK113c.jpg]
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Calcite included by Hematite (Twinned) from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK113d.jpg]

Aesthetically perched on an ocherous matrix are hematite-included crystals of equant, twinned calcite, to 3 cm across. The crystals are lustrous, partially translucent, and exhibit a rich brownish red coloration. Very pretty! This particular material tends to form flat plates, and a piece like this is hard to obtain for its aesthetics. from old finds here in the 1970s


HECK-112 - Calcite on Galena - $ 250
Naica, Chihuahua, Mexico

small cabinet, 5.6 x 4.9 x 4.6 cm
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK112a.jpg]
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK112b.jpg]
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK112c.jpg]

Diverging scalenohedrons of lustrous and translucent, milky colored calcite, to 1.5 cm in length, are emplaced on crystals of splendent, battleship gray, galena, to 2.5 cm across. Overall a cute specimen with great 3-dimensionality and fairly unique aesthetics. Pristine, as with nearly all Heck pieces


HECK-111 - Pyrrhotite - $ 450
Santa Eulalia, Chihuahua, Mexico

small cabinet, 7.2 x 5.1 x 4.9 cm
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Pyrrhotite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK111b.jpg]
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Pyrrhotite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK111c.jpg]
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Pyrrhotite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK111a.jpg]

Classic old material - seldom seen today in quality! Before Dalnegorsk material came to market from Russia, these were widely considered the best pyrrhotites around, and now they are dramatically discounted compared to prices brought in former days. However, they still hav egreat impact for form and color, and the importance of being from this locale. A large, blocky, doubly terminated crystal of bronze colored pyrrhotite, measuring 5 cm in length, is attached to another crystal that has been contacted on the back side. Interestingly, the basal terminations exhibit a much lighter bronze color than the sides. Superb old classic


HECK-110 - Pyrite ps. after Pyrrhotite & Galena - $ 300
Naica, Chihuahua, Mexico

small cabinet, 7.3 x 5.6 x 5.5 cm
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Pyrite ps. after Pyrrhotite & Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK110a.jpg]
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Pyrite ps. after Pyrrhotite & Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK110b.jpg]
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Pyrite ps. after Pyrrhotite & Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK110c.jpg]

A matrix of splendent, intergrown, battleship gray galena crystals to 1 cm across, along with a druse of colorless quartz crystals, is the host to tabular crystals of pyrrhotite that have been pseudomorphed to sparkling, brassy yellow pyrite. The original form of the pyrrhotite is preserved nicely! The piece overall is sparkling and bright


HECK-109 - Calcite (Fishtail Twin) - $ 1250
Taxco, Guerrero, Mexico

small cabinet, 8.0 x 8.5 x 8.4 cm
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Calcite (Fishtail Twin) from Taxco, Guerrero, Mexico [db_pics/heck/HECK109a.jpg]
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Calcite (Fishtail Twin) from Taxco, Guerrero, Mexico [db_pics/heck/HECK109b.jpg]
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Calcite (Fishtail Twin) from Taxco, Guerrero, Mexico [db_pics/heck/HECK109c.jpg]
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Calcite (Fishtail Twin) from Taxco, Guerrero, Mexico [db_pics/heck/HECK109d.jpg]

Amazingly, perfectly centered above a wreath of smaller calcite crystals, stands this majestic, fishtail twin of lustrous and translucent, white calcite, 6.25 cm in height. I have not seen such a twinned calcite from Mexico before, beyon da thumbnail that I can recall. This is a very rare habit for calcite generally, and tends to come from Midwest locales, and a few other places - but not from here. The piece is sparkly overall, and just could not be composed better


HECK-108 - Quartz encrusting Danburite with Calcite - $ 750
Charcas, San Luis Potosi, Mexico

small cabinet, 9.2 x 8.8 x 8.5 cm
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Quartz encrusting Danburite with Calcite from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK108d.jpg]
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Quartz encrusting Danburite with Calcite from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK108e.jpg]
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Quartz encrusting Danburite with Calcite from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK108b.jpg]

Two, very large crystals in parallel growth of danburite, to 10 cm in length, have been thickly encrusted by sparkling drusy quartz. The front side, which is a white quartz druse, is different from the back side which has a sparkling, colorless druse of calcite. Overall a very geometric and unusual specimen.


HECK-105 - Hemimorphite - $ 1200
Ojuela Mine, Mapimi, Durango, Mexico

cabinet, 10.9 x 6.8 x 5.3 cm
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Hemimorphite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK105b.jpg]
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Hemimorphite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK105c.jpg]

An unusual piece, amidst many hemimorphites that all look sorta the same in styles! On a thin crust of ocherous limonite are fat fan-shaped clusters, some of which have coalesced into a big pinwheel. The crystals are glassy and translucent, colorless to white , with a faint red hematite speckle atop. Individual fan-shaped clusters reach 3 cm across. The fanshaped clusters are quite different from the elegant single crystals we normally see from here, and of a large size for this habit as well. Complete all around!


HECK-104 - Tetrahedrite & Pyrite - $ 2000
Concepcion del Oro, Zacatecas, Mexico

cabinet, 10.2 x 9.1 x 5.2 cm
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Tetrahedrite & Pyrite from Concepcion del Oro, Zacatecas, Mexico [db_pics/heck/HECK104b.jpg]
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Tetrahedrite & Pyrite from Concepcion del Oro, Zacatecas, Mexico [db_pics/heck/HECK104a.jpg]
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Tetrahedrite & Pyrite from Concepcion del Oro, Zacatecas, Mexico [db_pics/heck/HECK104d.jpg]
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Tetrahedrite & Pyrite from Concepcion del Oro, Zacatecas, Mexico [db_pics/heck/HECK104e.jpg]

This attractive plate features the sharp lines of superbly crystallized, large, very lustrous, tetrahedrites, to 3.25 cm in length. These crystals visibly have complicated striations that give them a lot of character and dimensionality, plus they stand out more from the matrix than you normally see in Mexican tetrahedrites. In fact, the quality is so good here, they are of a quality you associate with Peru (but the overall look is distinct). This is certainly one of the best examples we have seen, for quality. . . there are bigger crystals to be sure, but this association on sparkly pyrite, with dramatic individualized crystals, makes the piece.


HECK-101 - Quartz ps. After Danburite with Quartz - $ 900
Charcas, San Luis Potosi, Mexico

large cabinet, 15.4 x 10.9 x 9.6 cm
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Quartz ps. After Danburite with Quartz from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK101c.jpg]
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Quartz ps. After Danburite with Quartz from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK101b.jpg]
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Quartz ps. After Danburite with Quartz from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK101a.jpg]

A dramatic large specimen with two huge, fat danburite crystal that have been at least partially replaced by quartz at their outer layers. A second generation of larger glassy and translucent, colorless quartz crystals to 5 cm across, is stacked atop the surface of the first layer of quartz. The largest of the quartz crystals is also doubly terminated and all are bright and sparkly. Overall, a very unusual cabinet specimen


HECK-100 - Quartz ps. after Calcite Stalactites - $ 1500
Charcas, San Luis Potosi, Mexico

large cabinet, 15.4 x 11.5 x 11.4 cm
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Quartz ps. after Calcite Stalactites from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK100a.jpg]
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Quartz ps. after Calcite Stalactites from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK100b.jpg]
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Quartz ps. after Calcite Stalactites from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK100c.jpg]
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Quartz ps. after Calcite Stalactites from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK100d.jpg]
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Quartz ps. after Calcite Stalactites from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK100e.jpg]

This bizzare, sculptural piece just leaps out to the eye. It is sparkly and actuallly has a pretty orange-brown color to it, but the overall shape is what appeals most. Stalactites of calcite to 12 cm in length have been totally replaced, it seems, by sparkling, colorless, drusy quartz. The stalactitic fingers formed in roughly parallel growth. The piece is complete on the display face, though some terminations of stalactites to the sides and rear are broken off (certainly understandable in context). The parallel growth along with the quartz encrustation has given the specimen a rather unusual shape, as if it was blowing in the wind.


HECK-099 - Calcite on Galena - $ 1000
Naica, Chihuahua, Mexico

cabinet, 12.9 x 10.3 x 7.1 cm
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK099a.jpg]
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK099c.jpg]
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK099d.jpg]
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Calcite on Galena from Naica, Chihuahua, Mexico [db_pics/heck/HECK099e.jpg]

Dramatic large specimen! A matrix of splendent, battleship-gray, galena crystals to 4.2 cm across is the pedestal for an unusual, pineapple-shaped compound crystal of lustrous, translucent, white calcite. The terminations of the large rhombohedral calcite, which are complete around the top, have "exploded" into many small, sharp "dog-tooth" scalenohedrons. The calcite rests on a fluorite crystal, mostly buried beneath and inside of the overlaying calcite but visible through the (broken off, and thus exposed) backside of the piece.


HECK-093 - Rhodochrosite - $ 600
Santa Eulalia, Chihuahua, Mexico

thumbnail, 2.2 x 1.1 x 0.9 cm
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Rhodochrosite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK093a.jpg]
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Rhodochrosite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK093b.jpg]
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Rhodochrosite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK093c.jpg]
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Rhodochrosite from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK093d.jpg]

A glassy and gemmy single scalenohedron of cherry-red rhodochrosite, measuring 2.2 cm in length. Unlike nearly all other Mexican rhodochrosites, this rhodo is absolutely limpid. Old finds from the 1970s or earlier, I am told. For quality, this is as good as it gets from Mexico! The piece could fool you on quick look as a N'chwaning mine specimen!


HECK-092 - Acanthite - $ 2000
San Luis Mine, Fresnillo, Zacatacas, Mexico

thumbnail, 2.5 x 2.3 x 2.3 cm
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Acanthite from San Luis Mine, Fresnillo, Zacatacas, Mexico [db_pics/heck/HECK092a.jpg]
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Acanthite from San Luis Mine, Fresnillo, Zacatacas, Mexico [db_pics/heck/HECK092b.jpg]
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Acanthite from San Luis Mine, Fresnillo, Zacatacas, Mexico [db_pics/heck/HECK092c.jpg]
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Acanthite from San Luis Mine, Fresnillo, Zacatacas, Mexico [db_pics/heck/HECK092d.jpg]

This magnificent acanthite crystal is perched on a stem of more slender acanthite. It has brilliant luster, great form and a dark metallic color, and measures a whopping 2.2 cm across. It is absolutely a world-class thumbnail and a superb competition quality specimen of the species.


HECK-091 - Manganoan Adamite - $ 1200
Ojuela Mine, Mapimi, Durango, Mexico

miniature, 3.7 x 2.8 x 2.7 cm
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Manganoan Adamite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK091a.jpg]
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Manganoan Adamite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK091b.jpg]
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Manganoan Adamite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK091c.jpg]
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Manganoan Adamite from Ojuela Mine, Mapimi, Durango, Mexico [db_pics/heck/HECK091d.jpg]

Perched high on a matrix of manganese oxides, are crystals of manganoan purple adamite to 1.25 cm in length. The crystals are lustrous, translucent, with mostly white bodies and gemmy, pinkish-purple terminations. A classic from the one-time find in 1981! The associated balls accentign the adamites are probably manganese



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