Assertion: tat spodumene | /r/HasProperty | treated'at 1950 f.
Facets:
Source sentences:
text: In these examples, the tat-spodumene of Example 2 is calcined in air to fi-spodumene at 2075 F. Twenty-five gram lots of this material are treated'at 1950 F., with various mixtures of chlorine and air for various periods of time as set forth in the following Table II along with the Li O and Fe 0 contents of the treated products: