Natural Minerals Group

From the standards library of SPI Supplies and the C. M. Taylor Company

# AS1190-AB



ElementWt % OxideWt %
O 47.13
Na 10.69Na2O 14.42
Mg 0.43MgO 0.72
Al 12.02Al2O3 22.73
Si 27.76SiO2 59.38
Ca 1.23CaO 1.72
Fe 0.72Fe2O3 1.03

Sum100.0 Sum100.0

Loose pieces of jadeite

Locality: China
This is a reflected light micrograph of a polished,carbon coated crystal of jadeite from China, where the best jade originates. The identifying etched label, which is a feature of our standards is invaluable for navigating in an electron beam instrument. Jadeite is widely used as the best standard for sodium in silicates because the Na atoms are more firmly locked in the dense pyroxene structure than in the more open felspar structure, and therefore show less tendency to migrate under electron bombardment.
Click here for a mineralogical account of everything you might want to know about Jadeite.

Name Description SPI # Each
Jadeite SPI SuppliesŪ Individual Mounted Microanalysis Standard Item AS1190-AB $
Jadeite SPI SuppliesŪ Individual Loose Microanalysis Standard Item AS1195-AB $

To Ask a Question or Make a Comment

To Place an Order or Request a Quote

Return to:
© Copyright 1996 - . By Structure Probe, Inc.
Contacting SPI Supplies and Structure Probe, Inc.
All rights reserved.
All trademarks and trade names are the property of their respective owners.

Worldwide Distributors, Representatives, and Agents