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Baobab Mine, Kitui County, Kenya
9.3 x 7 x 5.5 cm
A sharply terminated and mostly clear Amethyst crystal from a remote region of Kenya. Some of the faces of this Amethyst show skeletal and/or stepped-growth features and there are some minor clay inclusions, all of which are fine accents. The bottom of the specimen is partially terminated. The Baobab Mine is considered a world-class locality for Amethyst.
Bobruvka, dár nad Sázavou District, Vysocina Region, Czech Republic
9.3 x 6.1 x 5.7 cm
A large Smoky Quartz crystal with multiple overgrowths of milky and transparent Quartz. In other words, a scepter crystal. This specimen has a glass-like lustre. The jagged termination of this crystal is due to dissolution caused by changes in the geological environment (rising temperatures, aggressive solutions, increasing pressure). To learn more about scepter Quartz visit Amir Akhavan's magnificent website devoted to all things Quartz: http://www.quartzpage.de/gro_text.html#scepter
Black and Blue Claim, Harris Park, Park County, CO
9.5 x 4 x 3.3 cm
A clear crystal of Smoky Quartz. from a lesser known Colorado location that was intermittently worked by noted digger Ken Gochenouer in about a 25 year period from the late 80's - mid 2000's.
scepter (double terminated)
Eonyang, South Gyeongsang Province, South Korea
4.6 x 2.1 x 1.4 cm
A double terminated Quartz scepter with an Amethyst overgrowth on one termination and the other termination being a colorless reverse scepter. This specimen has a good form. Amethyst scepters from this location are hard to obtain and are considered to be classics. This location is now defunct as the property has been converted to an amusement park.
pseudomorph after Anhydrite
Agua Fria River, New River Station Area, Yavapai County, AZ
4.5 x 4.3 x 2.6 cm
These dramatic Chalcedony pseudomorphs after Anhydrite were collected over a period of 10 years by my friend, Al Rose. This material has the distinction of being mentioned not once but twice in The Mineralogical Record's what's new in minerals. Not many of these were found and are much sought after by collectors of Arizona minerals as well as by pseudomorph collectors.
Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta, Italy
6.5 x 2.8 x 1.8 cm
A very clear faden Quartz from a renowned alpine mineral locality. Faden Quartz is the descriptive term for a usually tabular group of Quartz crystals with a white thread-like or string-like zone running through the interior. The term faden is a German word for "thread". They are commonly found in the Alpine region of Europe, Pakistan, Russia and Arkansas. To learn more about faden Quartz visit Amir Akhavan's magnificent website devoted to all things Quartz: http://www.quartzpage.de/gro_text.html#faden
Quartz on Microcline
Lolo Pass, Missoula County, MT
5.3 x 4.9 x 3.1 cm.
A stout, 5.3 centimeter Smoky Quartz partially penetrated by a 5 centimeter Smoky Quartz. This crystal has many unique growth lines and patterns on some of the crystal faces. These Smokies from Lolo Pass are not as abundant as they used to be. Collected in the 1980's by Jim & Dawn Minette.
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
6.2 x 2.2 x 2.1 cm
When one thinks of pegmatites, one usually assumes that a significant portion of the minerals found there will be Quartz. However, at Mont Saint-Hilaire, this is not the case as most of the Quartz crystals are found in the non-pegmatite rock formations. While Quartz crystals to 15 cm. have occasionally been found, they are typically opaque & crudely formed. This translucent, double-terminated Quartz crystal exhibits multiple stages of growth with distinct color zoning throughout the crystal. Specimens from this classic location are getting hard to come by as collecting is restricted to one or two field trips per year, to small groups (drawn by lottery) of members of the Club de Minéralogie de Montréal, under very strict rules.
Miage Glacier, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
8.3 x 2.4 x 1.7 cm
A glassy, water-clear crystal of Smoky Quartz with an unusual form. I am not sure what is responsible for this crystal's peculiar form but I think it is an interesting specimen. No damage.
Quartz with Microcline
Lolo Pass, Missoula County, MT
10.9 x 4.1 x 4 cm
This specimen consists of a slender 10.9 cm prism of Smoky Quartz that is partially enveloped by a 7 cm tabular Smoky Quartz crystal. The larger crystal although very dark in hue is very clear. The smaller crystal is translucent and is contacted on one side. Also present on this specimen is a 3.5 cm crystal of Microcline. This specimen is complete all around with just a miniscule imperfection on the termination.
pseudomorph after Gypsum (fluorescent)
Crawford Dam, Crawford, Dawes County, NE
9.5 x 8.7 x 7 cm
Nebraska is not necessarily the first state that one thinks of when it comes to mineral specimens, but these pseudomorphs from Crawford are some of the more noteworthy specimens from anywhere in the Cornhusker State. This piece is a group of what were originally Gypsum blades that were completely replaced by Quartz. Areas of the interior portion of this specimen exhibit yellowish fluorescence under LWUV light and other areas have bright green fluorescence under SWUV illumination which suggests that specimen is made up of both Chalcedony and Quartz. Fluorescence in Quartz is rarely observed.
Mount Malosa, Zomba, Southern Region, Malawi
8.5 x 2.5 x 2.3 cm
A very gemmy smoky Quartz scepter with two “heads”.
with Cosalite inclusions & Siderite
Kara-Oba W Deposit, Betpakdala Desert, Karazhal, Karaganda Region, Kazakhstan
8.5 x 5.3 x 3.5 cm
A pair of water-clear Quartz crystals with a jacket of opaque Quartz. A dusting of green-brown-colored Siderite lends a nice accent of color to this specimen. The clear area on the rear is not damaged, it is where the Quartz crystals grew against other Quartz crystals which allows you to see the gemmy interior which has inclusions of the uncommon lead-bismuth sulfosalt, Cosalite.
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