Gabbronite or gabronite is, a mineral, a variety of scapolite, occurring' in masses, whose structure is more or less foliated, or sometimes compact. Its colours are grey, bluish or greenish grey, and sometimes red. Research Gabbronite
Scapolite has the formulae (Na,Ca,K)4A13(Al,Si)3Si6O24(Cl,SO4,CO3) and a relative hardness of 6. It shows fluorescence. Occurs in the crystalline schists, gneisses, and often is probably derived from the alteration of plagioclase feldspars. Also occurs in crystalline limestones formed by metamorphic contact or igneous intrusion. Associated with diopside, amphibole, garnet, apatite, and zircon. Research Scapolite
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Abbreviations
Research Gabbronite
