phosphorite

The formation is a phosphorite and an important resource of phosphorus.

There are some phosphorite and bauxite reserves in the area.

It occurs in phosphorite deposits and forms encrustations on old bones.

Building materials, phosphorite, and peat are also important.

Phosphorite is found along the river between Mstislavl and Krichev.

The islands have phosphorite and guano resources.

Currently no phosphorite is mined in Estonia as it is not considered economically viable.

This is where granular phosphorites, phosphorite hardgrounds, and nodules occur.

Phosphorite is a phosphate-rich sedimentary rock, that contains between 18% and 40% PO.

Also, pellets composed of either glauconite or phosphorite are common in marine sedimentary rocks.

The mountains along the lake are rich in phosphorite, and in the 1980s extensive exploration work was done for open-pit mining.

Kazakhstan also possesses large deposits of phosphorite.

There is some coal mining in the area, as well as some (unused) phosphorite reserves.

Natural resources include deposits of sand, clay, chalk, marl, and other building materials, as well as phosphorite.

The district has deposits of phosphorite, building sand, glass sand, and diatomaceous earth (abrasive).

Phosphorite mines are primarily found in:

The phosphorite here originates from guano.

The apatite in phosphorite is present as cryptocrystalline masses referred to as collophane.

Nodular phosphorite, coal fragments and concretionary siderite occur in the coarse beds.

The area is also rich with mineral resources such as iron ore, tin, gold, copper, diamonds, molybdenum ore, and phosphorite.

Belarus also has deposits of clay, sand, chalk, dolomite, phosphorite, and rock and potassium salt.

It commonly occurs as a detrital or diagenic mineral in sedimentary rocks and is an essential component of phosphorite ore deposits.

Within the basin the formation consists of a basal phosphorite overlain by a thick sequence of chert and cherty sandstone.

The phosphate content of phosphorite is at least 15 to 20%, which is a large enrichment over the typical sedimentary rock content of less than 0.2%.

Marine sedimentary phosphorite deposits can contain low grade concentrations of uranium, up to 0.01-0.015% UO, within fluorite or apatite.