Barite Bologna Stone - Pack of 2 Rocks - Unpolished Mineral Specimens

Barite Bologna Stone - Pack of 2 Rocks - Unpolished Mineral Specimens

Overview

Two pieces of barite, or Bologna Stone, which occurs in a diverse series of environments and deposited by a number of different processes.

Warnings

Barite Bologna Stone - Pack of 2 Rocks - Unpolished Mineral Specimens

Regular price $5.99 In Stock
or
Reviews Read Reviews

Overview

Two pieces of barite, or Bologna Stone, which occurs in a diverse series of environments and deposited by a number of different processes.

Warnings

Product Details

Barite Bologna Stone Mineral - Pack of 2
by American Educational Products

Also referred to as baryte, from the Greek word for "heavy", or Bologna Stone, it attained a measure of notoriety in the 17th century for some phosphorescent specimens that were found near Bologna, Italy. Consisting of barium sulfate, it is generally white or colorless, though it has been found to have light shades of blue, yellow, grey, and brown, and it is the main source of barium extraction. Despite containing the heavy metal barium, it is non-toxic because of its extreme insolubility.

Barite occurs in an exceptionally diverse series of environments, and is capable of being deposited by a number of different processes that include biogenic, hydrothermal, evaporation, and others. It can commonly be found in lead-zinc veins in limestone, in conjunction with hematite ores, and also in hot spring deposits. The mineral has also been identified as a constituent of meteorites, and has been found alongside other minerals, such as anglesite and celestine.

It is primarily used as a weighting agent for drilling fluids in the oil and gas exploration fields, as a percentage of the mud mix. Because it is non-magnetic, it does not interfere with any magnetic measurements or instruments used around the borehole. Some of its other uses throughout history have been as a filler in paint and plastics, as well as in the production of barium hydroxide for sugar refinement, and as a white pigment for textiles, paper, and paint.

Each rock or mineral specimen measures approximately 1-2 inches in length along its longest side.

Additional Information

SKU

AMEP5634B

Weight

0.2 lb

​ ​