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Barite from the Cedar Creek Anticline, Glendive, Montana.
Rocks & Minerals
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March 1, 2003|
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COPYRIGHT 2003 Heldref Publications. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Pierre Shale outcrops in South Dakota--particularly the [Elk Creek location (Roberts and Campbell 1987)--have produced superb barite crystals in the past but are now generally closed to collecting. Two lesser-known accessible Montana localities have for years generated similar specimens from a higher member of the same formation but are undocumented. This article details the easternmost occurrence, numerous parcels of BLM-administered land in what is known as the Pine Oil Field, 14 miles south of Glendive, Montana (fig. 1).
[FIGURE 1 OMITTED]
Geology
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DM&E to battle drainage challenges.(Dakota, Minnesota & Eastern)
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; ...in the area from Pierre, S.D., west, you are building on Pierre shale, which is a little tricky. The whole key is to intercept...and drain it properly. If you do that, the problems with Pierre shale largely go away. That material is quite stable when it's...
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A new find of barite crystals with phantoms from Michigan's Copper Country.(Collector's Note)
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; ...reddish-brown clay (probably montmorillonite) that has protected the barite crystals from damage. Mineral collecting is accomplished by scooping...shovels, then washing the clay with water to liberate the barite crystals, a method similar to that described by Rosemeyer (2006...
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Road-cut mineral: occurrences of St. Lawrence County, New York: part I: Beaman Road Barite Occurrence.
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; ...overgrowths of secondary calcite, and a few barite crystals to 1.3 cm in size. With the assistance...were coated with tabular colorless barite crystals to 1 cm across. Some plates of calcite...In the largest pockets, pale blue barite crystals formed coatings to 1 cm thick on the...
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Another Wyoming locality. (Letters).
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; ...locality as Newcastle, Wyoming. I was delighted to see the specimen because I had collected several similar but smaller barite crystals of the same habit many years ago while staying with friends in Newcastle. Even though I can no longer remember the precise...
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Secondary minerals from the Carletonville Gold Mines: Witwatesrand Goldfield, South Africa.
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; ...deepest mines in the world, the Mponeng mine, situated in the Witwatersrand goldfield in South Africa. Coincidentally, huge barite crystals, more than 50 cm, were also found at a neighboring mine. Aesthetic specimens of galena, sphalerite, quartz, and calcite...
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Recent finds at the famous Prospect Park quarry: Prospect Park, Passaic County, New Jersey.
Magazine article from: Rocks & Minerals
; ...boast fine native silver, chalcocite crystals to 3.75 cm, red stilbite bow-ties to 14 cm, endless morphologies of calcite, barite crystals to 14 cm, some of the world's finest prehnite, and arguably the finest known examples of chabazite, gmelinite, and thomsonite...
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Iowa mineral locality index.
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; ...6 W.; Ordovician-age Wise Lake and Maquoketa Formations: barite (crystals), bitumen, calcite (crystals, some fluorescent), fluorite...Raymond; Devonian-age Little Cedar and Coralville Formations: barite * (crystals), calcite * (brown, some pseudocubic crystals), fluorite...
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Chips from the quarry.(Editorial)
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; ...issue has three articles tied to the Copper Country: one on datolite found this past winter at the Mesnard mine, another on barite crystals with phantoms found in Ontonagon County, and a third on pseudo-octahedral calcite found at the Minesota mine. If you are...
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Collecting microminerals in the Creede Mining District: the Amethyst, Commodore No. 5 & Bulldog Mountain Mines: Mineral County, Colorado.(Through the 'Scope)
Magazine article from: Rocks & Minerals
; ...crystals with rounded corners associated with aggregates of minute, tan, rounded sphalerite crystals (confirmed by EDS). The barite crystals range to 5 mm across. Cerussite was rare as colorless to pale yellow, somewhat rounded, bright, microscopic crystals. In...
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Minerals of the Kerch Iron-Ore Basin in Eastern Crimea, vol. 8.(Book review)
Magazine article from: Rocks & Minerals
; ...cavities of fossil shells. Among the various minerals in fossil shells that are especially remarkable are the honey-colored barite crystals, rhodonite in fine pink spherulitic aggregates, calcite crystals, and, especially, vivianite--probably, with anapaite, the...
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