The name of a group of minerals, usually of a green color and micaceous to granular in structure
platey iron-magnesium silicate, typically formed during alteration by other minerals at low temperatures
A blue-green colored mineral often found as inclusions in (or coatings on) Quartz It is considered to be one of the most favorable healing stones with overwhelmingly positive properties It enhances co-operation and is a purifier
Widespread group of layer silicate minerals composed of hydrous aluminum silicates, usually of magnesium and iron. The name, from the Greek for "green," refers to chlorite's typical colour. Chlorites have a silicate layer structure similar to that in micas. They characteristically occur as alteration products of other higher temperature minerals and are most common in sedimentary and igneous rocks and in some metamorphic rocks
A group of layer silicate minerals of the 2: 1 type that has the interlayer filled with a positively charged metal-hydroxide octahedral sheet There are both trioctahedral (e g , M = Fe(II), Mg2+, Mn2+, Ni2+) and dioctahedral (M= Al3+, Fe3+, Cr3+) varieties See also Appendix I, Table A3
A very soft, grayish-green to dark green mineral with a pearly luster It occurs most often as crusts, masses, or thin sheets or flakes in metamorphic rocks, particularly schists and greenstone