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Latest Carbonate minerals Stories

2008-09-04 03:00:18

By Rosemeyer, Tom The Leadville mining district, whose history, geology, and mineralogy have been described in numerous publications, is one of the most famous silver mining camps in the United States. For an in- depth study of the ore deposits and mineralogy of the district, the reader is referred to Emmons, Irving, and Loughlin (1927), Loughlin (1918, 1926), and Shannon and Shannon (1985). The fortunes of mining made several individuals millionaires, mostly from the profits of the rich...

2008-09-04 03:00:18

By Smith, Arthur E The Amethyst, Commodore No. 5 & Bulldog Mountain Mines Mineral County, Colorado Creede is located in southwestern Colorado on the edge of the San Juan Mountains just south of where Willow Creek enters the Rio Grande Valley. Originally, the townsite was further north in East Willow Creek Canyon near the confluence with West Willow Creek. A disastrous fire in 1894 wiped out the town, and a new settlement sprang up to the south at a location at first called Jimtown....

2008-07-17 03:00:29

By Anonymous SUMMER ENTICEMENTS: Despite the price of gasoline, there are mineral events aplenty to lure us onto the open road with our vacation days. For those who want to escape the heat and humidity of their home state, the cool climes of Michigan's Upper Peninsula entice with the Copper Country Mineral Retreat, 3-10 August, in the historic Lake Superior native copper district. The event encompasses a full schedule of activities: underground collecting, prepared surface collecting,...


Latest Carbonate minerals Reference Libraries

28_3f12abda63415a07ee5b6c5d30ef8239
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their association with the ores at the Carthinian iron mines. The type location for aragonite is Molina de...

28_acf3a79763725412768c5ca1b9da5c84
2005-05-26 12:12:27

Aurichalcite is a mineral, usually found as a secondary mineral in copper and zinc deposits. Its chemical formula is (Zn,Cu)5(CO3)2(OH)6. The name probably originates from the Greek oreichalchos meaning "mountain copper".

28_0a3a738af1a0ebb3486bcd5283bdadc7
2005-05-26 12:11:19

Azurite is a carbonate mineral with chemical composition Cu3(CO3)2(OH)2, (copper carbonate hydroxide). Azurite is often found in association with the green mineral malachite as a result of the weathering and oxidation of copper sulfide minerals. The name azurite comes from the Arabic word for blue. Azurite is used in jewelry and also collected as a beautiful mineral specimen. Use as a pigment Azurite has been used as a blue mineral pigment for centuries. It was formerly known as...

28_9c404ab9a4754b403781670c9e631915
2005-05-26 11:59:32

he mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earth's surface. It is a common constituent of sedimentary rocks, limestone in particular. It is also the primary mineral in metamorphic marble. It also occurs as a vein mineral in deposits from hot springs, and also occurs in caverns as stalactites and stalagmites. Calcite is often the primary constituent of the shells of marine organisms (e.g. plankton,...

28_a3b402afde54eeee86bc53e0e9a360b3
2005-05-26 11:01:09

Dolomite is a mineral (formula CaMg(CO3)2) consisting of a calcium magnesium carbonate found in crystals and in beds as dolostone. A pure form of dolostone would be rare, however; it usually intergrades with limestone and is referred to as dolomitic limestone, or in old U. S. geologic literature as magnesian limestone. Dolomite has physical properties similar to those of the mineral calcite, but is less soluble in hydrochloric acid. There is uncertainty as to the cause of its formation,...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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