The groundmass exhibits almost no evidence of flow structure. This is in distinct contrast to the conspicuous flow structure shown by the hypercrystalline groundmasses of the dacites at all the other localities in the region with the partial exception of O'Leary Peak.
Source: wiktionary
In the hypercrystalline varieties the glass has partly devitrified to give spherulites. In the holocrystalline varieties an “ alteration ” occurs along flow lines as localised patches which may link together leaving the unaltered material as clear spots. This gives the rock a maculose appearance.
Source: wiktionary
There is also a known suggestion that the vacua consist of hypercrystalline: classical spacetime coordinate and fields are parameters of coherent states [19].
Source: wiktionary