SPI Supplies

Albite NaAlSi3O8

Locality: Strickland Quarry, Haddam, Connecticut USA

Element%Oxide%
O48.76
Na8.60Na2O11.59
Al10.34Al2O319.54
Si32.03SiO268.52
K0.18K2O0.22
Ca0.09CaO0.13
Sum100.0Sum100.0
200 µ m
This is a reflected light micrograph of a polished, carbon coated albite crystal. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Albite is the sodium rich member of the plagioclase felspars and is a useful standard for felspars and other aluminosilicates. The sodium shows a tendency to migrate under high beam currents, so caution is advised. The name refers to its white color (Latin - albus).
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Cautionary Note
The compositional and other data shown here are intended to convey typical values for this item and do not neccessarily correspond in detail to standard mounts supplied in the past or to be supplied in the future. Items are changed from time to time as stock is exhausted or alternate choices are preferred. These data should, however, give someone contemplating the purchase of an SPI standard a fair indication of what they may expect to receive. Records are kept of all mounts sold so that, should you lose your documentation at some time in the future, we will be happy to replace it at no charge.


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Sunday July 06, 2008
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