sarcopside

sarcopside

[sär′käp·səd]
(mineralogy)
(Fe,Mn,Mg)3(PO4)2 A mineral composed of a phosphate of manganese, magnesium, and iron.
References in periodicals archive ?
Phosphoric acid contamination leads to formation of sarcopside mineral.
It can be seen from XRD results, that (i) the dissolution of minerals (calcite and ankerite) and formation of bassanite and anhydrite in sulfuric acid and (ii) formation of sarcopside (metal phosphate) in phosphoric acid, contributed to the volume changes observed in kaolin clay due to acid contamination.
d-spacings and chemical formula of minerals found in kaolin clay Notation Mineral Major diagnosed d-spacings K Kaolinite 7.15A (001), 3.58A (002), 2.34A (003) C Calcite 3.03A (001) I Ankerite 2.90A (001) T Anhydrite 3.49A (001), 2.85A (002) B Bassanite 3.00A (001), 6.00A (003), 1.85A (004) S Sarcopside 6.02 A (001), 3.52A (002), 3.01A (003), 2.81A (004) Y Brushite 7.62 (001), 3.06A (003) Notation Chemical formula K [Al.sub.2][Si.sub.2][O.sub.5] [(OH).sub.4] C CaC[O.sub.3] I Ca (Fe, Mg) [(C[O.sub.3).sub.2] T CaS[O.sub.4] B CaS[O.sub.4]x0.5[H.sub.2]O S [Fe.sub.3][(P[O.sub.4]).sub.2] Y CaHP[O.sub.4] 2[H.sub.2]O Table 8.