A microcrystalline material is a crystallized substance or rock that contains small crystals visible only through microscopic examination. There is little agreement on the range of crystal sizes that should be regarded as microcrystalline, but the extreme range of values suggested is 1 to 200 microns.[1]
Nanocrystalline silicon – allotrope of siliconPages displaying wikidata descriptions as a fallback
Protocrystalline – distinct phase occurring during crystal growth which evolves into a microcrystalline formPages displaying wikidata descriptions as a fallback
Rock microstructure – Relationship between materials which compose a rockPages displaying short descriptions of redirect targets
References
^Jackson, Julia A., ed. (1997). "microcrystalline". Glossary of Geology (Fourth ed.). Alexandria, Virginia: American Geological Institute. ISBN0922152349.