Apatite

Description: Calcium Phosphate

Oxide	Analysis	Formula
CaO	55.60%	0.77
P2O5	42.20%	0.23
LOI	2.20%	n/a
Oxide Weight		75.90
Formula Weight		77.61

Notes

Popular bone-ash substitute. Melts only superficially, has strong opacifying attributes.

Hydroxyapatite Is a refractory and can be used for making crucibles that can survive retreated heat cycles.

Related Information

Calcite W Apatite

Apatite - Madagascar

Apatite In Calcite

Fluorite - China

Fluorapatite On Apatite

Links

URLs	http://en.wikipedia.org/wiki/Apatite Apatite at Wikipedia
Oxides	P2O5 - Phosphorus Pentoxide
Typecodes	Generic Material Generic materials are those with no brand name. Normally they are theoretical, the chemistry portrays what a specimen would be if it had no contamination. Generic materials are helpful in educational situations where students need to study material theory (later they graduate to dealing with real world materials). They are also helpful where the chemistry of an actual material is not known. Often the accuracy of calculations is sufficient using generic materials.

Data

Hardness (Moh)	5.0
Frit Softening Point	1300C D
Density (Specific Gravity)	2.9-3.2

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