calcite

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Related to calcitic: Scalenohedral
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Words related to calcite

a common mineral consisting of crystallized calcium carbonate

References in periodicals archive ?
Calcitic fabrics fall broadly into two basic types: prisms (columnar) and folios (sheets).
The OS seam can be distinguished from footwall (FW; chert with < 10 cm thick interbeds of phosphatic mudstone and calcitic veins) and overburden (chalk and chalky limestone with minor chert) by significantly higher API values (Fig.
B, Thin section under cross polarized light where the calcitic character of the sample is observed.
For skeletal mineralization, the avian embryo mobilizes calcium from its calcitic eggshell.
The Malagawatch Formation has not yet been subdivided into members but consists of an assemblage of rock types similar to those of the Blues Brook Formation, including metasiltstone, slate, calcitic and dolomitic marble, calc-silicate rocks, minor quartzite, and mafic metavolcanic rocks (Justino 1991).
Pure calcitic limestone (CaC[O.sub.3]) does not yield magnesium upon dissolution, but the ratio of calcium: magnesium is 1.64 following dissolution of pure dolomite (CaC[O.sub.3] x MgC[O.sub.3]).
2) confirmed nearly pure, radiating calcitic tufa morphology indicative of subaqueous formation.
Verrecchia (1999), "Calcitic Radial Palisadic Fabric in Freshwater Stromatolites: Diagenetic and recrystallized feature or physicochemical sinter crust?," Sediment.
is the only known hard, calcitic, reef-building alcyonarian (soft) coral.
Hendler, "Calcitic microlenses as part of the photoreceptor system in brittlestars," Nature, vol.
In vitro regulation of CaC[O.sub.3] crystal growth by the highly acidic proteins of calcitic sclerites in soft coral, Sinularia polydacta.
In order to determine the type of mineralogy and diagenetic systems of Tarbur Formation carbonates, major (Mg and Ca) and minor (Fe, Mn, Sr and Na)elements measured in this carbonates, and with against plotted of them, were compared whit other different researchers limits that was presented to determination of Aragonitic and Calcitic mineralogy.