Yellow gemmy apatite crystals on dark matrix from Mexico with reflection.
Yellow apatite crystals from Mexico showing internal rainbow iridescence reflections.
Close-up of yellow prismatic apatite crystals on matrix from Mexico.
Angled view of a yellow apatite crystal on dark matrix from Mexico.
Apatite (Fluorapatite) video

Apatite (Fluorapatite)

Fluorapatite – Ca5(PO4)3F
Elements: Calcium, Phosphorus, Oxygen, Fluorine
Class: Phosphates
Crystal System: Monoclinic
Hardness: 5
Apatite
Talc (1)Diamond (10)
About as hard as a steel knife blade.
Origin: Cerro de Mercado Mine, Victoria de Durngango, Cerro de los Remedios – Mexico
Did you know?

The mineral that hardens your tooth enamel is also a piece of a lunar puzzle. Most of the apatite in Apollo Moon rocks is fluorapatite, and the hydrogen hidden in it once pushed estimates of the Moon's water too high.

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