adularia


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adularia

[‚aj·ə′la·rē·ə]
(mineralogy)
A weakly triclinic form of the mineral orthoclase occurring in transparent, colorless to milky-white pseudo-orthorhombic crystals.
References in periodicals archive ?
sulphidation type quartz adularia and quartz sulphide vein systems.
58 g/t gold) are related to adularia alteration and veining which may be the upper expression of a multistage high-grade quartz vein system similar to the high-grade mineralization found in the Yellow Jacket system 4 kilometres to the north of Mayflower.
0x20 In addition, targeting work is ongoing in the Mayflower area to follow up the new high-grade, banded adularia vein discovery (NB-12-141 with 1.
Prospecting in the central area began with trenches in late 2009; the veins exposed are 2m to 3m wide and show typical quartz- adularia low sufidation assemblages.
Gangue minerals include quartz, calcite, adularia, minor fluorite, and trace amounts of pyrite, marcasite, and chalcopyrite.
5 ft (5 m) interval includes zones of heavy white clay and milky quartz veining cut by veins with grey quartz and minor naumannite (Ag-selenide), quartz vein brecciation, and two notable areas with strong adularia coating on fractures.