Endive is also a common name for some types of chicory (Cichorium intybus). There are two main varieties of cultivated endive: 1  Curly endive, or frisee (frisÃ©e var). 2  Crispum this type has, narrow, green curly outer.  leaves
Calcite is more stable and common than aragonite under the chemistry of our modern seas.) Hardness 3 (down to 2. but also the ease with which it forms. in the form of marble.5 to 4. Calcite forms in a range of settings from hot springs and underground caverns to growing coral reefs and seashells.
These are minerals that are only stable at both high temperature and high pressure: minerals like staurolite and kyanite, and garnet, and siliminite, and graphite. These minerals are almost unheard of in igneous rocks and in sedimentary rocks because they only form under conditions of extreme temperature and pressure.