A Geoscience Digital Image Library

TitleApatite (massive)
DescriptionApatite, Ca5(PO4)3(OH,F,Cl) is the most common phosphate mineral. It is present in many rocks of different sorts but is generally too fine grained and disseminated to be seen easily. It sometimes forms in massive beds (phosphorites) which are mined to manufacture fertilizers and other chemicals. Well-formed apatite crystals are hexagonal prisms, but the 6 cm long samples shown here are subhedral (poor crystals) and highly fractured.
PhotographerNessa Eull. 2001-11-01.
CollectionUniversity of North Dakota Mineralogy Collection.
Key wordsapatite
Tech details301 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1733