hopeite


Also found in: Dictionary, Wikipedia.
Related to hopeite: parahopeite

hopeite

[′hō‚pīt]
(mineralogy)
Zn3(PO4)2·4H2O A gray, orthorhombic mineral composed of hydrous phosphate of zinc; specific gravity is 2.76-2.85; dimorphous with parahopeite.
Mentioned in ?
References in periodicals archive ?
But only hopeite is formed on galvanized steel and is measured as the ratio of hopeite (020)/hopeite (311) (151) (241) plane.
59[degrees], respectively, for a 20 value of phosphophyllite (100) and hopeite (020).
The globular-shaped crystal structure in phosphated Sample A showed the presence of phosphophyllite as the main crystal, whereas the plate-shaped crystals in phosphated Sample B showed the presence of hopeite as the main crystal.
Furthermore, Sample C provided less creepage because of the low solubility of the phosphophyllite structure present in the phosphate coating in a high alkaline medium as opposed to the hopeite structure of Sample D.
The levels of magnesium and calcium in the water will not agglomerate hopeite, so the particle size in solution is maintained thus extending the bath life.
The hopeite surface conditioner can eliminate all of the traditional concerns that accompany titanium-based conditioners while reducing both manufacturing facility operational costs and environmental concerns.
2] Crystal Size on CRS 2 - 15 [micro] 2 - 5 [micro] Tolerance to Hard Water salts Poor Excellent Bath Life Up to 4 weeks Up to 6 months Water High Low Consumption Table 2 Ti-based Hopeite Surface area [m.
Writer Jean Glick of Hope writes, "For the Easter sunrise service, Hopeites are awakened by a trombone band playing at street corners before the 6 a.