Gallery 11 Zeolite Mineral Specimens
S-163 Stilbite $50
Mawi Pegmatite, Nilaw-Kolum Pegmatite Field, Du Ab District, Nuristan, Afghanistan
3.9 x 2.7 x 2.7 cm
While not unheard of, Zeolite minerals in pegmatites are not that common. Especially when it comes to Afghanistan where the only other pegmatite occurrence of a zeolite mineral are the Pollucite crystals from 15-20 years ago. This specimen features many well-formed and undamaged crystals of honey-brown-colored Stilbite. I'd seen several of these associated with Kunzite a few years back but that was it for this find. This specimen would make a fine addition to anyone's collection of pegmatite or zeolite minerals.
S-164 Stilbite $35
Mount Etna, Pine Grove Hills, Wilson Mining District, Lyon County, NV
3.7 x 2.4 x 2.4 cm
A vibrantly-colored bundle of Stilbite crystals from the middle-of-nowhere, Nevada. I've lived in northern Nevada for 17 years and this is the first and only example of this material that I have encountered. A great addition to anyone's suite of zeolite minerals.
L-039 Laumontite & Calcite $50
Pine Creek Mine, Scheelite, Bishop, Inyo County, CA
7.5 x 1.4 x 1.0 cm
A double-terminated crystal of Laumontite adorned with a jacket of yellowish crystals of Calcite. This specimen is nearly a floater with just one small point of attachment. The Pine Creek Mine is considered to a world-class location for examples of this zeolite mineral. This specimen has been stabilized.
S-161 Stilbite-Ca $30
Lower New Street Quarry, Paterson, Passaic County, NJ
3.7 x 3.1 x 2.4 cm
A complete, hemispherical aggregate of yellow-orange Stilbite perched on matrix. This specimen is good example of Stilbite from the US and particularly from this locale.
C-281 Chabazite-Ca on Calcite $95
Juchem Quarry, Niederwörresbach, Herrstein, Birkenfeld, Rhineland-Palatinate, Germany
14.4 x 12.2 x 7.4 cm
Here we have an example of one of the more elusive mineral species from the Juchem Quarry, Chabazite-Ca. This specimen features many twinned and translucent\transparent crystals of Chabazite perched on opaque prisms and massive Calcite which exhibit an intense red-colored fluorescence. While I have heard of Chabazite from this location, I had not, until a few years ago, actually seen one other than one photo on Mindat. The fact that this locality has been heavily collected and that Mindat has only one photo of this mineral from this locality attests to its rarity.
S-134 Stellerite $55
Aurangabad District, Maharashtra, India
5 x 4 x 2 cm.
Fine crystallized Stellerites are only found in a handful of localities worldwide. Stellerite is a species very close in structure and chemistry to Stilbite and can be mistaken for Stilbite. Both Stellerite and Stilbite occasionally assume a bow-tie-like form. This specimen is an example of this type of formation taken to the extreme and in my opinion that sets it above the majority of examples of these types of specimens. The light-peach-colored Stellerite presented here has a good lustre and presents well in any number of different orientations.
A-107 Analcime $40
Croft Quarry, Croft, Leicestershire, England, UK
4 x 3.1 x 2.6 cm.
A quite gemmy orange stained specimen of Analcime crystals to 1.4 cm. across. The orange-colored mineral inclusions highlight the geometric form of the Analcime crystals. A very lustrous example of this Zeolite mineral.
N-004 Natrolite and Calcite RESERVED
Sipi Caves, Mount Elgon, Manafwa District, Eastern Region, Uganda
7.1 x 4.2 x 1.5 cm
This specimen came to me as Natrolite on Petrified Wood and I guess that technically it is, as the rear of the specimen has a small stick of Petrified Wood embedded in it. This specimen feature a plethora of shimmering Natrolite crystals associated with amber-brown-colored crystals of Calcite. The minerals from this location are found in petrified wood fragments from a pre-Pleistocene ancient forest that clothed the Mount Elgon volcano.
T-317 Stilbite on Elbaite Tourmaline $285
Himalaya Mine, Gem Hill, Mesa Grande District, San Diego County, CA
4.2 x 2.2 x 2 cm
Here is an example of one of the more uncommon mineral associations that I have seen. While Stilbite is not unheard of in pegmatites, it is not that common, but to find it associated with Elbaite virtually unheard of. This Elbaite crystal is covered in a jacket of Stilbite crystals, measuring up to 1.5 cm in size. These specimens were found around 1990 and were a one-off find.
S-156 Stilbite on Microcline $75
Andrzej I Quarry, Zólkiewka, Swidnica, Lower Silesia, Poland
9 x 8.6 x 5.6 cm
A blocky and well-formed baveno-twinned crystal of Microcline featuring many tufts of divergent crystals of Stilbite. Also present on this specimen are several crystals of Epidote measuring up to 1.7 cm in size. There are also several areas with a red-colored mineral which appears to be Chabazite. This specimen is a complete all-around floater with no damage.
S-147 Stilbite $35
Paterson, Passaic County, NJ
6.8 x 4.9 x 3.3 cm.
A specimen of well-terminated, yellow-orange crystals of Stilbite measuring up to 8 mm on a basalt matrix. If you've been looking to score an New Jersey Stilbite on the cheap; here you go.
S-091 Stilbite with Celadonite inclusions $70
Jalgaon, Maharashtra, India
11.5 x 6.4 x 4.6 cm.
This specimen features a pair of bow-tie shaped Stilbite crystals included by the mineral Celadonite. I've seen lots of Celadonite included Heulandite crystals, but not very many of these Celadonite-included Stilbites. From what I have seen I have a feeling that there are not too many of these out there as I had to go through quite a few specimens to find this one.
A-109 Analcime with Natrolite $30
Robertson Pit, Dayton, Mason County, WA
8.1 x 5 x 3.1 cm.
This specimen consists of clear to translucent crystals of Analcime measuring up to 1.2 centimeters on a matrix of Eocene pillow basalt. Accenting the Analcime crystals is a 2.6 centimeter spray of Natrolite crystals. This specimen was collected in the 1990's by prolific digger John Cornish whom amongst other things brought us the peach-colored Heulandite crystals on snow-white Mordenite from Idaho. Most recently all of those stunning Crocoite specimens from Tasmania, Australia.
H-011 Heulandite with Celadonite inclusions $25
Jalgaon, Maharashtra, India
3.5 x 4 x 3.5 cm.
Here's one that in my opinion will be considered a classic in the future. Slightly curved and twisted Heulandite crystals included by Celadonite. These crystals have an extremely brilliant luster which many included minerals seem to lack.
with Synchysite $75
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
10 x 5 x 4.5 cm.
This large specimen, upon first glance, appears to be a rather typical-looking cluster of Analcime crystals, but this specimen is more than that. The dark gray region is composed of hundreds of 0.5 millimeter disk-shaped crystals of the rare mineral Synchesite-(Ce). (Ce is the symbol for the rare-earth element Cerium, for you non-chemists out there.) Although some are naked-eye visible, the Synchesite crystals are better viewed with a loupe or a microscope which also reveals a sprinkling of minute Pyrite crystals, especially along the edges of the Synchesite discs.
H-021 Heulandite with Celadonite inclusions $40
Jalgaon, Maharashtra, India
8 x 6 x 3.7 cm.
Here's an example of a mineral specimen that in my opinion will be considered a classic in the future. This matrix specimen features slightly curved and twisted Heulandite crystals included by the mineral Celadonite. These crystals have a brilliant luster, which many included minerals seem to lack.
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