For the first time, the study allows the distinction to be made between calcite-alabaster originating in Israel from that originating in Egypt, the main source of calcite-alabaster in ancient periods.

Many marine organisms, including corals, build skeletons from calcium carbonate – in the form of calcite or aragonite. The current composition of seawater favors the formation of aragonite – but soft ...

Close to the eastern edge of San Diego County, Anza-Borrego’s Calcite Mine trail offers a wealth of desert beauty — vast views, painted hills, a little history and one of the coolest slot canyons.

Distance from downtown San Diego: 104 miles. Allow almost 3 hours’ driving time (Anza-Borrego Desert State Park). From Ramona, drive east on Hwy 78, turn left on Hwy 79, right on San Felipe Road (S2), ...