cristobalite in English

noun
1
a form of silica that is the main component of opal and also occurs as small octahedral crystals.
Analyses of some samples of the dense grey rimstone sinter showed weak reflections, indicating the possible presence of cristobalite .

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Below are sample sentences containing the word "cristobalite" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "cristobalite", or refer to the context using the word "cristobalite" in the English Dictionary.

1. The groundmass contains interstitial quartz or tridymite or cristobalite.

2. Minerals associated with this include quartz, cristobalite and tridymite, which may all be present in volcanic ash.

3. It can also be produced in the laboratory by compressing cristobalite in a diamond anvil cell to pressures above 40 GPa.

4. Further influence of alkaline solutions decomposes the alunite already precipitated, whereby α-cristobalite remains unchanged or is recrystallized to quartz.

5. Depending on the temperature and on the content of silica and alumina, Aluminosilicate clays, upon heating, form various combinations of alumina, cristobalite, mullite, and liquid

6. Products of natural alteration consisting of cristobalite and alunite could likewise be imitated in experiments, when the trachyandesite was transformed first by alcalic solutions and then by sulphuric acid.