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Unakite is a metamorphic rock that is altered granite composed of pink orthoclase feldspar, green epidote, and generally colorless quartz. Discovery
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [2]
Nepheline syenite is a holocrystalline plutonic rock that consists largely of nepheline and alkali feldspar. [1] The rocks are mostly pale colored, grey or pink, and in general appearance they are not unlike granites, but dark green varieties are also known.
The name unaka is rooted in the Cherokee term unega, meaning "white". [2] Common lore is that 1 in 4 trees in the Unaka Range were American Chestnut trees prior to the great Chestnut Blight. Because the chestnut had long white blossoms, the Unaka Mountains turned white in color during the spring blossoming of the chestnut trees.
The name Epidote is derived from the Greek word 'epidosis', meaning "increase", in allusion to the crystal characteristic of one longer side at the base of the prism. [5] The faces are often deeply striated and crystals are often twinned.
Intrusions of larvikite in Norway form part of the suite of igneous rocks that were emplaced during the Permian period, associated with the formation of the Oslo Rift.The crystallisation of a ternary feldspar indicates that this rock began to crystallise under lower crustal conditions.
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Sample of Epidosite. Epidosite (/ ɪ ˈ p ɪ d ə s aɪ t /) is a highly altered epidote and quartz bearing rock. [1] It is the result of slow hydrothermal alteration or metasomatism of the basaltic sheeted dike complex and associated plagiogranites that occurs below the massive sulfide ore deposits which occur in ophiolites.