Mineral Specimens with Gypsum

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3D20 - Goethite ps. Gypsum - SOLD
La Negra, Mun. de Carmargo, Chihuahua, Mexico

miniature, 3.9 x 1.9 x 1.9 cm
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Goethite ps. Gypsum from La Negra, Mun. de Carmargo, Chihuahua, Mexico [db_pics/pics/3d20a.jpg]
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Goethite ps. Gypsum from La Negra, Mun. de Carmargo, Chihuahua, Mexico [db_pics/pics/3d20b.jpg]
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Goethite ps. Gypsum from La Negra, Mun. de Carmargo, Chihuahua, Mexico [db_pics/pics/3d20c.jpg]

Whether you consider this a true pseudomorph or a hollow cast, either way you shake it this is an outrageously good specimen. The botryoidal Goethite has superb luster and just the color and texture that you would want. The few places that there are dings actually enhance the specimen because they provide small windows into the multi-layering of the Goethite. Seldom do you see these so sharply formed and well-preserved! Usuaully they are much thinner, more fragile casts with many holes in them.


3D80 - Chrysocolla ps. after Selenite - SOLD
Ray Mine, Pinal County, Arizona, USA

thumbnail, 2.6 x .8 x .5 cm
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Chrysocolla ps. after Selenite from Ray Mine, Pinal County, Arizona, USA [db_pics/pics/3d80a.jpg]
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Chrysocolla ps. after Selenite from Ray Mine, Pinal County, Arizona, USA [db_pics/pics/3d80b.jpg]

Beautiful cluster of Chrysocolla blades that is outstanding for its color and its architecture. It is equally amazing that something so seemingly fragile has only suffered the most minimal of damage in only one tiny spot near the base. Nearly pristine, and as aesthetic as can be, this is a killer. These form as replacements after selenite and were generally found 30-40 years ago, by and large.


4JB16-LC88 - Selenite twin on Selenite (floater) - SOLD
Red River Floodway, Winnipeg, Manitoba, Canada

small cabinet, 7.2 x 4.2 x 4 cm
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Selenite twin on Selenite (floater) from Red River Floodway, Winnipeg, Manitoba, Canada [db_pics/pics/4jb16-lc88a.jpg]
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Selenite twin on Selenite (floater) from Red River Floodway, Winnipeg, Manitoba, Canada [db_pics/pics/4jb16-lc88b.jpg]
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Selenite twin on Selenite (floater) from Red River Floodway, Winnipeg, Manitoba, Canada [db_pics/pics/4jb16-lc88c.jpg]

Few Selenites that have come out of Canada in recent years have the aesthetics of this lovely twinned crystal perched on a ball of smaller Selenites. The crystal has a beautiful silky luster and some of the side faces provide clear windows into the transparent crystal. One of the better Canadian Selenites that you will see...pristine except for the very bottom of the sphere that the twin sits on (understandably used as the display base anyhow).


CH26 - Todorokite on Gypsum - SOLD
Rancho Penasquitos, San Diego County, California, USA

cabinet, 16.9 x 12.0 x 8.0 cm
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ex.  Chuck Houser

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Todorokite on Gypsum from Rancho Penasquitos, San Diego County, California, USA [db_pics/pics/ch26a.jpg]
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Todorokite on Gypsum from Rancho Penasquitos, San Diego County, California, USA [db_pics/pics/ch26b.jpg]

A truly bizarre specimen featuring a todorokite crystal, crude and ugly though it is, perched on matrix. Extremely rare and unusual! This crystal may be a replacement of a previous mineral, but we do not know of what.Self collected by Chuck on a grading project in Penasquitos in the late 80's


D06-63 - Selenite - SOLD
Daye Mine, Hubei Province, China

small cabinet, 8.2 x 5.9 x 5.2 cm
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Selenite from Daye Mine, Hubei Province, China [db_pics/pics/d06-63a.jpg]
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Selenite from Daye Mine, Hubei Province, China [db_pics/pics/d06-63b.jpg]

A stunning selenite, and with incredibly sharp and water-clear, GEMMY crystals, from this important new Chinese locality. MUCH BETTER IN PERSON! Trust me, it may not cost a fortune but this is one of the best darn selenite specimens I have ever seen, to hold its own with other species.


D12 - Goethite ps. Gypsum - SOLD
La Negra, Chihuahua, Mexico

thumbnail, 2.4 x 1.9 x 1.2 cm
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ex.  Marilyn Dodge

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Goethite ps. Gypsum from La Negra, Chihuahua, Mexico [db_pics/pics/d12a.jpg]
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Goethite ps. Gypsum from La Negra, Chihuahua, Mexico [db_pics/pics/d12b.jpg]
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Goethite ps. Gypsum from La Negra, Chihuahua, Mexico [db_pics/pics/d12c.jpg]

Delicate and very attractive pseudomorph in which the Gypsum is perfectly replaced by the Goethite. Each sharp blade shimmers with a green or red iridescence that gives this excellent thumb a beauty all its own.


ES133 - Selenite - € 229
Roden, Zaragoza, Spain

small cabinet, 6.1 x 5.5 x 4 cm
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ex.  Ernie Schlichter

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Selenite from Roden, Zaragoza, Spain [db_pics/pics/es133a.jpg]
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Selenite from Roden, Zaragoza, Spain [db_pics/pics/es133b.jpg]
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Selenite from Roden, Zaragoza, Spain [db_pics/pics/es133c.jpg]

Perched on a bed of tiny gypsum crystals, which in turn is on a matrix of massive gypsum, are three transparent spears of Selenite to almost 4 cm. This cluster is extremely aesthetic. These were once available in the early 90s in some quantity but i have seen few in recent years and am told that the quarry has not produced them in almost a decade. OK, so it is "only selenite" to some folks but , species interest level aside, its just aesthetic as all getout and some of the prettiest, sparkliest mineral specimens on the planet


GEM7-00 - Selenite - SOLD
Naica , Chihuahua, Mexico

cabinet, 20 x 10 x 10 cm
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Selenite from Naica , Chihuahua, Mexico [db_pics/pics/gem7-00a.jpg]
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Selenite from Naica , Chihuahua, Mexico [db_pics/pics/gem7-00b.jpg]

A magnificent large single crystal of selenite measuring in at 20 x 7 cm, and about 2.7 cm thick. It is in miraculously good shape for such a large, clean, exposed crystal! Common mineral, yes, but NOT in such quality and size and gemminess! This thing is so clean and clear you can read right through it, though it is an inch thick; and see right through it to the matrix underneath. This is a selenite of very high calibre worthy of any fine collection, and I do not say that phrase often!


GEMS-110 - Gypsum - SOLD
Strkovice, Czech Republic

thumbnail, 20.9 x 9.1 mm ; 8.26 carats
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Gypsum from Strkovice, Czech Republic [db_pics/new09/rlkg110a.JPG]Gypsum from Strkovice, Czech Republic [db_pics/new09/rlkg110b.JPG]

Gypsum certainly is not a rare species, but facetted gems are definitely hard to find. The incredible softness and perfect cleavage of the mineral makes for some very difficult cutting, and only highly skilled gem cutters can facet a stone like this one. This Octagon cut gem has only very slight inclusions, and is essentially colorless. It is a very impressive stone for the size considering that very few are ever available over a few carats.


HECK-017 - Gypsum - € 272
Naica, Chihuahua, Mexico

small cabinet, 6.9 x 5.4 x 4.5 cm
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ex.  Richard Heck

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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017b.jpg]
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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017a.jpg]
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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017c.jpg]
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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017d.jpg]
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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017e.jpg]
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Gypsum from Naica, Chihuahua, Mexico [db_pics/heck/HECK017f.jpg]

A drusy crust of gypsum, tan on the outside and white in the center, is the natural pedestal for two glassy and gemmy, colorless spearheads of gypsum, to 5.5 cm in length. The larger crystal is also doubly terminated. The aesthetics of the piece are really outstanding, and it is not "just another gypsum " !


HECK-022 - Gypsum (twinned) on Quartz - € 175
Santa Eulalia, Chihuahua, Mexico

small cabinet, 9.9 x 7.4 x 4.2 cm
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ex.  Richard Heck

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Gypsum (twinned) on Quartz from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK022a.jpg]
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Gypsum (twinned) on Quartz from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK022b.jpg]
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Gypsum (twinned) on Quartz from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK022c.jpg]
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Gypsum (twinned) on Quartz from Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK022d.jpg]

Scattered on the sharp white quartz points here, radiating out, are lustrous and translucent, honey colored, fishtail twins of gypsum, to 3 cm in length. A few of the gypsum crystals are also doubly terminated. The quartz fluoresces a rich purple color. Lovely combo piece!


HECK-046 - Gypsum var. Selenite - € 582
Naica, Chihuahua, Mexico

small cabinet, 6.3 x 3.5 x 2.4 cm
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ex.  Richard Heck

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Gypsum var. Selenite from Naica, Chihuahua, Mexico [db_pics/heck/HECK046a.jpg]
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Gypsum var. Selenite from Naica, Chihuahua, Mexico [db_pics/heck/HECK046b.jpg]
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Gypsum var. Selenite from Naica, Chihuahua, Mexico [db_pics/heck/HECK046c.jpg]

On a contrasting matrix are tabular, glassy and gemmy, colorless gypsum crystals to 4 cm in length. Most of the gypsum crystals are also doubly terminated. A superb piece, with balance and poise unusual for this material


HECK-047 - Danburite with Calcite and Gypsum - € 388
Charcas, San Luis Potosi, Mexico

small cabinet, 9.4 x 5.4 x 4.8 cm
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ex.  Richard Heck

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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047a.jpg]
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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047b.jpg]
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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047c.jpg]
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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047d.jpg]
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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047e.jpg]
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Danburite with Calcite and Gypsum from Charcas, San Luis Potosi, Mexico [db_pics/heck/HECK047f.jpg]

A large , lustrous and translucent, light pink, 9 cm-long danburite crystal is nearly covered by scalenohedrons of lustrous and translucent, yyellow-amber-colored calcite crystals to 2.6 cm in length. There are even a few crystals of glassy and gemmy gypsum to 1.5 cm across. The calcite crystals fluoresce a rich orangey purple color. Overall, a very unusual and dramatic combination piece!


HECK-066 - Gypsum on Calcite - € 1164
Naica, Chihuahua,Mexico

small cabinet, 9.8 x 7.4 x 2.9 cm
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ex.  Richard Heck

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Gypsum on Calcite from Naica, Chihuahua,Mexico [db_pics/heck/HECK066a.jpg]
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Gypsum on Calcite from Naica, Chihuahua,Mexico [db_pics/heck/HECK066b.jpg]
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Gypsum on Calcite from Naica, Chihuahua,Mexico [db_pics/heck/HECK066c.jpg]
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Gypsum on Calcite from Naica, Chihuahua,Mexico [db_pics/heck/HECK066d.jpg]

A superb, doubly terminated, tabular, crystal that measures 9.8 cm across, this is glassy and gemmy. The colorless gypsum is elegantly arranged on a matrix of drusy , sparkling calcite as if on a pedestal - you could not ask for more perfect placement. Despite its softness this piece is nearly pristine, with only the most trivial wear. The totally clear and limpid gypsum crystal is offset even more under fluorescence whre the calcite is imparted with a brown hue and the gypsum transmits the UV light. Simply wonderful!


HECK-075 - Gypsum var. Selenite - € 349
Level 9, Mina Ingletierra, Santa Eulalia, Chihuahua, Mexico

small cabinet, 8.4 x 7.1 x 5.2 cm
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ex.  Richard Heck

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Gypsum  var. Selenite from Level 9, Mina Ingletierra, Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK075a.jpg]
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Gypsum  var. Selenite from Level 9, Mina Ingletierra, Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK075b.jpg]
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Gypsum  var. Selenite from Level 9, Mina Ingletierra, Santa Eulalia, Chihuahua, Mexico [db_pics/heck/HECK075f.jpg]

Scattered about in a jackstraw arrangement on a limonite matrix are several exceptionally glassy and gemmy, colorless crystals of gypsum to 7.7 cm in length. The two largest crystals are doubly terminated and both exhibit large phantoms at their centers that are beautiful, multi-colored gardens. A really nicer-than-most-such kind of specimen!



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