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M111 Calcite/Limonite

M111 Calcite/Limonite

$30.00

Here is a new and different item at the Rock Shed. This a very nice, very interesting Calcite, Rosasite, Limonite Gossan specimen from Mapimi, Mexico. It has a very pretty Aqua blue Rosasite on the Calcite Limonite Gossan matrix. This fantastic mineral measures 3 1/2″ x 2 1/4″ x 1 1/8″ and has a super natural appearance. A great way to begin your mineral collection!!

In stock

Description

Calcite is a Carbonate mineral that is most widely distributed on the Earth’s surface.  It is a common constituent of sedimentary rocks with Limestone in particular.  A Calcite formation can take on many different shapes and sizes which is dependent on the location, ground water occurrence and temperature.  Calcite is usually white or colorless but can be gray, red, yellow, green, blue, violet, brown or black.  The deeper the color is usually indicative of the definitive impurities from the earth or water.

Limonite is an ore consisting of a mixture of hydrated Iron Oxide-Hydroxide of varying composition of minerals such as Goethite, Lepidocrocite, or Jarosite. It has been mined with Hematite as an Ore for the production of Iron. Limonite is heavy and has a yellow-brown color. It is often used as the pigment ochre in many paints.

Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. In the classic gossan or iron cap all that remains is iron oxides and quartz, often in the form of boxworks.

Rosasite is an uncommon mineral belonging to the Carbonate group of minerals. It has a minor potential for use as zinc or copper ore as is typically associated with Copper deposits including Limestone which is the source of the Carbonate.

Additional information

Weight0.50 lbs
Dimensions3.50 × 2.125 × 1.125 in

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