Type 1 are passive inclusions and type 2 are cylindrical quartz intergrowths
that are coprecipitated with the porphyroblast (Fig.
Some of the clay samples present intergrowths
with opaque minerals; these samples are appreciable crystalline forms of K-Feld, quartz, and plagioclase with iron oxides development on their cleavage, as shown in Figure 3(a).
In addition, the hydration and hardening mechanisms of cement is based on CSH density combined with the addition of water and crystallization of ettringite and calcium hydroxide intergrowths
which form pores in hardening cement paste [14, 15].
Most of the rocks are characterized by abundant granophyric intergrowths
Gold mainly appears as isolated grains but also sparsely occurs in the form of intergrowths
with quartz (Fig.
of Ti-clinohumite with forsterite are very common (Figures 8f, i).
These include widening of a fracture filling where a fracture crosses a chemically reactive rock (Figure 5(a)), irregular or vermicular intergrowths
of hematite and calcite-dolomite (Figure 5(b)), remnant islands of nonreplaced host rock, rims of one mineral penetrating another along its crystallographic directions (Figure 5(c)), nonmatching walls or borders of a fracture, and cusp and caries textures (Figure 5(d)) 49].
Layered perovskite-like oxides are compounds which consist of intergrowths
of perovskite and other structures, and they are formed by two-dimensional nanosized perovskite slabs interleaved with cations or cationic structural units.
Although the final aim of this research is working with real mineral particles, first attempts of texture characterization have been carried out on a series of textures in synthetic biphasic particles that represent the intergrowths
described by Gaudin (1939) in a simple way (Fig.
Galena formed irregular intergrowths
with sphalerite and was abundant in a few thin layers in zinc and copper-zinc ore (Payne et al.