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tridymite's Usage Examples:

with all the members of the quartz group, which also include coesite, tridymite and stishovite.

in α-tridymite it is in the range 154–171 pm.

The Si-O-Si angle also varies between a low value of 140° in α-tridymite, up to 180° in β-tridymite.

especially cordierite, indialite, fayalite, mullite, tridymite and cristobalite (both tridymite and cristobalite may be classified as oxide minerals,.

A high-alumina basalt ranges from olivine basalt to tridymite-rich dacite.

Martian and lunar meteorites, where it is presumably formed from either tridymite or cristobalite – other polymorphs of quartz – as a result of heating.

appear to be closer to that of cristobalite and tridymite than to quartz.

The structures of tridymite and cristobalite are closely related and can be.

Associated minerals include kamacite, troilite, schreibersite, clinoenstatite, tridymite, cristobalite, daubreelite, graphite, roedderite, alabandite, talnakhite.

Quartz is rare in trachyte, but tridymite (which likewise consists of silica) is not uncommon.

silicate inclusions but with different mineralogy (IVA for example has tridymite and pyroxene).

graphite, ilmenite, merrillite, low-calcium pyroxene, schreibersite, tridymite and troilite.

McNulty Gulch, exhibited small drusy cavities containing little tablets of tridymite.

The main 3 polymorphs are quartz, cristobalite, and tridymite.

present, it is converted into the polymorphs of cristobalite and / or tridymite.

Commonly in most felsic ignimbrites the quartz polymorphs cristobalite and tridymite are usually found within the welded tuffs and breccias.

individual silicon and oxygen atoms to α-tridymite, similarly to the transition from α-quartz to β-quartz.

β-tridymite slowly transforms to cubic β-cristobalite.

A mixture of sanidine with silica in the form of tridymite melts at a eutectic temperature of 990 °C, which defines the "granite".

temperature at which the liquidous phases crystallize in a sequence: mullite + tridymite, followed by sekaninaite and finally fayalite + clinoferrosilite (Grapes.

tridymite's Meaning':

a mineral form of silica

Synonyms:

silicon oxide; silicon dioxide; mineral; silica;

Antonyms:

organic;