Whitlockite

Whitlockite is a mineral that belongs to the apatite group. It was first discovered in 1902 by Charles Palache and named after George Whitlock, an American mineralogist. Whitlockite is commonly found in phosphate-rich rocks and is known for its unique crystal structure and chemical composition.

Characteristics

Whitlockite has a chemical formula of Ca9Mg(PO4)6(PO3OH), which indicates its high calcium and magnesium content. It crystallizes in the hexagonal system and typically forms prismatic or tabular crystals. The color of whitlockite can vary from colorless to pale yellow or brown. It has a Mohs hardness of 5, making it relatively soft compared to other minerals.

Occurrence

Whitlockite is primarily found in phosphate-rich rocks, such as phosphate nodules and phosphorite deposits. It is commonly associated with other minerals like apatite, calcite, and quartz. Some notable locations where whitlockite has been found include the Palermo No. 1 Mine in New Hampshire, USA, and the Kovdor Massif in Russia.

Uses

Whitlockite does not have any significant industrial uses. However, it is highly valued by mineral collectors and enthusiasts due to its unique crystal structure and rarity. Its aesthetic appeal and interesting chemical composition make it a sought-after mineral for collectors.

See also

• Apatite
• Calcite
• Quartz

External links

• Mindat.org - Whitlockite
• Minerals.net - Whitlockite