SPI Supplies

Spodumene LiAlSi2O6

Locality: Minas Gerais, Brazil

Element%Oxide%
Li3.73Li2O 8.03
O51.59
Al14.50 Al2O3 27.40
Si30.18 SiO264.57
Sum100.0 Sum100.0
200 µ m
This is a reflected light micrograph of a polished, carbon coated spodumene crystal. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. This is the only standard in the set containing a major amount of lithium, which, although it is too light to produce useful X-rays for analysis, may be of value in ion beam analysis. This makes it a "standard of omission" whose composition cannot be determined completely by X-ray spectroscopy, but is still valuable for comparison with unknowns. It is a gem quality material from the Minas Gerais pegmatite.
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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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Monday October 06, 2008
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