Difference between revisions of "Paceite"
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| formula = CaCu(CH<sub>3</sub>COO)<sub>4</sub>·6H<sub>2</sub>O | | formula = CaCu(CH<sub>3</sub>COO)<sub>4</sub>·6H<sub>2</sub>O | ||
| molweight = | | molweight = | ||
| − | | color = | + | | color = dark blue |
| − | | habit = | + | | habit = encrustations |
| system = [[Tetragonal crystal system|tetragonal]] | | system = [[Tetragonal crystal system|tetragonal]] | ||
| symmetry = 4/m | | symmetry = 4/m | ||
| − | | cleavage = | + | | cleavage = perfect on {100} and {110} |
| − | | fracture = | + | | fracture = brittle |
| − | | mohs = | + | | mohs = 1½ |
| − | | luster = | + | | luster = vitreous |
| refractive = | | refractive = | ||
| opticalprop = | | opticalprop = | ||
| birefringence = | | birefringence = | ||
| pleochroism = | | pleochroism = | ||
| − | | streak = | + | | streak = pale blue |
| − | | gravity = | + | | gravity = 1.47 (calc.) |
| melt = | | melt = | ||
| fusibility = | | fusibility = | ||
| diagnostic = | | diagnostic = | ||
| − | | solubility = | + | | solubility = soluble |
| − | | diaphaneity = | + | | diaphaneity = transluscent |
| other = | | other = | ||
| − | | references = <ref name="WebMineral">{{WebMineral-ref | name = Paceite | url = http://webmineral.com/data/Ludwigite.shtml | accessdate = 2009-12-04}}.</ref><ref name="MinDat">{{MinDat-ref | name = Paceite | id = 10918 | accessdate = 2009-12-04}}.</ref><ref>{{citation | last1 = Klop | first1 = E. A. | last2 = Duisenberg | first2 = A. J. M. | last3 = Spek | first3 = A. L. | year = 1983 | title = Reinvestigation of the structure of calcium copper acetate hexahydrate, CaCu(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub>)<sub>4</sub>·6H<sub>2</sub>O | journal = Acta Crystallogr., Sect. C: Cryst. Struct. Commun. | volume = 39 | pages = 1342–44}}.</ref> | + | | references = <ref name="WebMineral">{{WebMineral-ref | name = Paceite | url = http://webmineral.com/data/Ludwigite.shtml | accessdate = 2009-12-04}}.</ref><ref name="MinDat">{{MinDat-ref | name = Paceite | id = 10918 | accessdate = 2009-12-04}}.</ref><ref>{{citation | last1 = Klop | first1 = E. A. | last2 = Duisenberg | first2 = A. J. M. | last3 = Spek | first3 = A. L. | year = 1983 | title = Reinvestigation of the structure of calcium copper acetate hexahydrate, CaCu(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub>)<sub>4</sub>·6H<sub>2</sub>O | journal = Acta Crystallogr., Sect. C: Cryst. Struct. Commun. | volume = 39 | pages = 1342–44}}.</ref> |
}} | }} | ||
| − | '''Paceite ''' is | + | '''Paceite ''', formerly known as '''IMA2001-030''', is the mineral form of [[calcium]] [[copper]] [[acetate]].<ref name="WebMineral"/><ref name="MinDat"/> It is named after Frank L. Pace (born 1948), an amateur mineral collector who discovered it at the Potosi mine in Broken Hill, N.S.W., Australia ({{coord|31|57|S|141|27|E|alt= 31° 57′ S, 141° 27′ E}}) in 2001.<ref>{{citation | last1 = Hibbs | first1 = D. E. | last2 = Kolitsch | first2 = U. | last3 = Leverett | first3 = P. | last4 = Sharpe | first4 = J. L. | last5 = Williams | first5 = P. A. | year = 2002 | title = Hoganite and paceite, two new acetate minerals from the Potosi mine, Broken Hill, Australia | journal = Mineralogical Magazine | volume = 66 | pages = 459–64}}.</ref> The identity and name of the mineral were approved by the [[International Mineralogical Association]] (IMA) in 2002. |
| + | |||
| + | It is a secondary mineral, formed by the interaction of other calcium- and copper-bearing minerals with decaying leaf litter.<ref name="WebMineral"/> | ||
| + | |||
| + | ==See also== | ||
| + | *[[Hoganite]] | ||
==References== | ==References== | ||
Latest revision as of 07:35, 4 December 2009
| Paceite | |
|---|---|
| General | |
| Category | Organic minerals, Hoganite series |
| Chemical formula | CaCu(CH3COO)4·6H2O |
| Strunz classification | 10.AA.30 |
| Dana classification | 50.02.07.02 |
| Crystal symmetry | 4/m |
| Identification | |
| Color | dark blue |
| Crystal habit | encrustations |
| Crystal system | tetragonal |
| Cleavage | perfect on {100} and {110} |
| Fracture | brittle |
| Mohs scale hardness | 1½ |
| Luster | vitreous |
| Streak | pale blue |
| Diaphaneity | transluscent |
| Specific gravity | 1.47 (calc.) |
| Solubility | soluble |
| References | [1][2][3] |
Paceite , formerly known as IMA2001-030, is the mineral form of calcium copper acetate.[1][2] It is named after Frank L. Pace (born 1948), an amateur mineral collector who discovered it at the Potosi mine in Broken Hill, N.S.W., Australia (31° 57′ S, 141° 27′ E) in 2001.[4] The identity and name of the mineral were approved by the International Mineralogical Association (IMA) in 2002.
It is a secondary mineral, formed by the interaction of other calcium- and copper-bearing minerals with decaying leaf litter.[1]
See also
References
- ↑ 1.0 1.1 1.2 Paceite, <http://webmineral.com/data/Ludwigite.shtml> (accessed 4 December 2009), WebMineral.com.
- ↑ 2.0 2.1 Paceite, <http://www.mindat.org/show.php?id=10918> (accessed 4 December 2009), MinDat.org.
- ↑ Klop, E. A.; Duisenberg, A. J. M.; Spek, A. L. Reinvestigation of the structure of calcium copper acetate hexahydrate, CaCu(C2H3O2)4·6H2O. Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 1983, 39, 1342–44.
- ↑ Hibbs, D. E.; Kolitsch, U.; Leverett, P.; Sharpe, J. L.; Williams, P. A. Hoganite and paceite, two new acetate minerals from the Potosi mine, Broken Hill, Australia. Mineralogical Magazine 2002, 66, 459–64.
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