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|Hardness:||5½ - 6|
|Name:||Named after its chemical composition containing yttrium and from Greek "krasis", "mixture", alluding to the many other elements present.|
Classification of Yttrocrasite-(Y)
|Strunz 8th edition ID:||4/D.19-20|
|Nickel-Strunz 10th (pending) edition ID:||4.DG.05|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
|Dana 8th edition ID:||18.104.22.168|
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
|Hey's CIM Ref.:||7.9.12|
7 : Oxides and Hydroxides
9 : Oxides of Ti
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Type Occurrence of Yttrocrasite-(Y)
|Type Locality:||Unnamed pegmatite, Burnet Co., Texas, USA|
|General Appearance of Type Material:||A crystal with a dull brown alteration coating and a black, fresh interior.|
Physical Properties of Yttrocrasite-(Y)
|Comment:||Under microscop fragments shows through their edges a amber to light yellow color|
|Hardness (Mohs):||5½ - 6|
|Density (measured):||4.8 g/cm3|
Crystallography of Yttrocrasite-(Y)
|Comment:||Metamict (may have been orthorhombic before metamictisation).|
Optical Data of Yttrocrasite-(Y)
Chemical Properties of Yttrocrasite-(Y)
|Simplified for copy/paste:||(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6|
|Essential elements:||O, Ti, Y|
|All elements listed in formula:||Ca, Fe, H, O, Th, Ti, U, Y|
Relationship of Yttrocrasite-(Y) to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Yttrocrasite-(Y)
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Yttrocrasite-(Y)
Hidden, W.E. and Warren, C.H. (1906): Yttrocrasite, A New Yttrium-Thorium-Uranium Titanate. American Journal of Science, 4th. series: 22: 515-519.
Zambonini (1908), Zs. Kr.: 45: 76.
Palache, Charles, Harry Berman & Clifford Frondel (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 793.
American Mineralogist (1982): 67: 156.
Internet Links for Yttrocrasite-(Y)
Localities for Yttrocrasite-(Y)
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.