α-Hopeite
A synonym of Hopeite
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Formula:
Zn3(PO4)2 · 4H2O
Synonym:
A synonym of Hopeite
Hopeite crystals from Zimbabwe exhibit a zonal growth structure, the material of adjacent zones differing somewhat in properties but having an identical composition and X-ray diffraction patterns (Spencer, 1908).
So-called α-Hopeite was observed to have a higher specific gravity and birefringence than so-called β-Hopeite, with X = a, Y = c, and 2E ~ 58½°.
α-Hopeite and β-Hopeite differ by the orientation of one water molecule in the crystal structure (Herschke et al., 2004).
So-called α-Hopeite was observed to have a higher specific gravity and birefringence than so-called β-Hopeite, with X = a, Y = c, and 2E ~ 58½°.
α-Hopeite and β-Hopeite differ by the orientation of one water molecule in the crystal structure (Herschke et al., 2004).
Unique Identifiers
Mindat ID:
31902 (as α-Hopeite)
1999 (as Hopeite)
1999 (as Hopeite)
Long-form identifier:
mindat:1:1:31902:9 (as α-Hopeite)
mindat:1:1:1999:2 (as Hopeite)
mindat:1:1:1999:2 (as Hopeite)
GUID
(UUID V4):
(UUID V4):
ad7a1fd9-8de9-4792-b1b7-a71df310b3c2 (as α-Hopeite)
eee439a8-f7c1-495e-ab96-06af6b646424 (as Hopeite)
eee439a8-f7c1-495e-ab96-06af6b646424 (as Hopeite)
References for α-Hopeite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Spencer, L.J. (1908) On hopeite and other zinc phosphates and associated minerals from Broken Hill mines, North-Western Rhodesia. Mineralogical Magazine, 15, 1-38.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 734, 736.
Herschke, L., Enkelmann, V., Lieberwirth, I. and Wegner, G. (2004) The role of hydrogen bonding in the crystal structures of zinc phosphate hydrates. Chemistry - A European Journal, 10, 2795-2803.
Internet Links for α-Hopeite
mindat.org URL:
https://www.mindat.org/min-31902.html
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