Sentences with phrase «vaterite formed»

With the polymer, however, ACC always appeared first and vaterite formed much later.

In this case, the microscope not only identified signatures corresponding to calcium carbonate as forming the crust, but was also able to differentiate between the calcite and vaterite forms when it was present as a mixture while still attached to the leaf surface.»

Not exact matches

WAXS (wide angle x-ray scattering) analysis of the crystalline particles finally formed at ambient conditions shows that pure calcite (the stable polymorph of calcium carbonate) forms at pH - values corresponding to high binding strength in clusters and that predominantly vaterite (the least stable polymorph) and traces of calcite form at pH - values corresponding to low binding strength in clusters (fig.

Scientists at Sainsbury Laboratory Cambridge University have found that the mineral vaterite, a form (polymorph) of calcium carbonate, is a dominant component of the protective silvery - white crust that forms on the leaves of a number of alpine plants, which are part of the Garden's national collection of European Saxifraga species.

Without the polymer, they saw crystals of vaterite and a little calcite forming randomly under the microscope.

But in some cases, droplet - like particles of uncrystallized material known as amorphous calcium carbonate, or ACC, formed first and then transformed into either aragonite or vaterite.

All of the common crystal forms, including calcite (found in limestone), aragonite (found in mother - of - pearl), and vaterite (found in gallstones), crystallized from solution, often at the same time.

Multiple forms often nucleated in a single experiment — at least one calcite crystal formed on top of an aragonite crystal while vaterite crystals grew nearby.