alpha quartz
A stable form of quartz below 573° C with trigonal-trapezohedral symmetryA stable form of quartz below 573° C with trigonal-trapezohedral symmetry.
Meaning
1 senses(uncountable)A stable form of quartz below 573° C with trigonal-trapezohedral symmetry.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable