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ex. Richard Heck
This is an exquisitely formed, razor-sharp scalenohedron of rhodochrosite pseudomorph after the calcite (which it has replaced). The spearpoint crystal is 2.1 cm in length and the color is a lustrous and translucent, vivid, pink color. An added accent is the small , sparkling cluster gemmy quartz crystals on the lower left. A thumbnail, with big visual impact!
ex. Richard Heck
Bladed, glassy and gemmy, colorless crystals, to 1.3 cm across, are aesthetically perched high on a matrix of drusy, pastel purple amethystine quartz . Quite lovely and elegant, this is like a little jewel!!! It is one of my favorite calcite thumbnails, period.
ex. Richard Heck
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.
ex. Richard Heck
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.
ex. Richard Heck
A vuggy, ocherous, limonite matrix is the host for this crust of very lustrous, aqua-green colored cuproadamite, which has bubbled into sphere-like masses where there is available room in the pockets. The piece overall is big and impressive, and shows well how these things form in crevasses in previously cracked rock matrix. The largest of the stalactite-like formations is 3.5 cm in length. The contrast in color between the intense green adamite and the ocherous brown matrix adds to the look of this as an "art object" and it really shows off in a display case.
ex. Richard Heck
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.
ex. Richard Heck
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
ex. Richard Heck
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
ex. Richard Heck
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
ex. Richard Heck
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
ex. Richard Heck
A matrix of reddish-brown, massive hematite hosts a sparkling druse of brilliant little red calcites, all colored a solid red with hematite inclusions. Atop the sparkly layer, are several very sharp, very glassy, and slightly translucent calcite rhombohedrons to about an inch across. The crystals are heavily included by finely disseminated reddish hematite dust, which gives them their color. This is from classic old finds here. Some has also been found more recently, but not with such intense color as the best of the old material. And of this older material, VERY few pieces have such luster as this does...equally as important as the color. Also, the plate has no damage and is pristine (yet again, uncommon for the material)
ex. Richard Heck
Aesthetically nestled in a vug of ocherous limonite are rhombohedrons and scalenohedrons of lustrous and translucent calcite (to 1.8 cm in length) that have been totally included by aurichalcite, giving the crystals a spectacular sky blue color. The contrast to the dark matrix is very appealing, and the association was always rare and highly unusual (for this or any other locale). Beautiful!
ex. Richard Heck
A sulfide matrix is host to elongated scalenohedrons of lustrous, ivory-colored calcite, to 5. 5 cm across, which are surrounded by lustrous and translucent fluorite crystals that exhibit stepped growth. The fluorite crystals are very sharp, reach 2 cm across and have a frosted surface to them. Overall an interesting combination piece. Note that his is from Taxco, not Naica - such fluorites, and combinations, are much more rare here
ex. Richard Heck
A glassy and gemmy, light-green crystal of fluorite, measuring 2.5 cm across, is nearly surrounded by rosettes of lustrous and translucent, white calcite to 8 mm in length. A drusy coating of brassy yellow pyrite also provides a halo for the fluorite crystal and creates an unusual combination piece
ex. Richard Heck
A wonderful combo specimen! This features a 6.4 cm-long glassy and gemmy, colorless quartz crystal covered on three sides by 7 mm-long lustrous and translucent, colorless, calcite crystals which have been coated by drusy mn-calcite with an eye pleasing light pink color. Under the fluorescent light, the calcites glows a rich orange color.
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