1911 Encyclopædia Britannica/Phosphorite
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PHOSPHORITE, in mineralogy, the name given to impure massive apatite (q.v.; see also Phosphates).
See also Phosphorite on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.
PHOSPHORITE, in mineralogy, the name given to impure massive apatite (q.v.; see also Phosphates).