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This page provides mineralogical data about Caysichite-(Y).
Classification of Caysichite-(Y)
|Strunz 8th edition ID:||8/F.36-05|
|Nickel-Strunz 10th (pending) edition ID:||9.DJ.15|
9 : SILICATES (Germanates)
D : Inosilicates
J : Inosilicates with 4-periodic double and triple chains
|Dana 8th edition ID:||220.127.116.11|
70 : INOSILICATES Column or Tube Structures
1 : Column or Tube Structures with columnar silicate units
|Hey's CIM Ref.:||17.4.11|
17 : Silicates Containing other Anions
4 : Silicates with carbonates
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Type Occurrence of Caysichite-(Y)
|Type Locality:||Evans-Lou Mine, Lac Saint-Pierre (Wakefield Lake), Val-des-Monts, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada|
Physical Properties of Caysichite-(Y)
Optical Data of Caysichite-(Y)
|RI values:||nα = 1.586 - 1.589 nβ = 1.614 - 1.616 nγ = 1.621 - 1.626|
|2V:||Measured: 61° , Calculated: 52° to 60°|
|Maximum Birefringence:||δ = 0.035 - 0.037|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||r > v|
Chemical Properties of Caysichite-(Y)
|Simplified for copy/paste:||Ca2Y2Si4O10(CO3)3·4H2O|
|Essential elements:||C, Ca, H, O, Si, Y|
|All elements listed in formula:||C, Ca, H, O, Si, Y|
Relationship of Caysichite-(Y) to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Caysichite-(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 Caysichite-(Y)
Hogarth, D.D., Chao, G.Y., Plant. G.A. & Steacy, H. R. (1974): Caysichite, a new silico-carbonate of yttrium and calcium. Canadian Mineralogist.12: 293-298.
Mellini, M. and Merlino, S. (1978) Caysichite: a double crankshaft chain structure. Canadian Mineralogist: 16: 81-88.
Internet Links for Caysichite-(Y)
Localities for Caysichite-(Y)
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(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.