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Formula: NaY(SO4)2.H2O
Crystal System: Trigonal
Sulphate, yttrium-bearing mineral
Specific gravity: 3.385 calculated
Hardness: 2½ to 3
Streak: White
Colour: Colourless
Luminescence: Nonfluorescent under UV
Solubility: Slowly soluble in water at room temperature
Environments
Sedimentary environments
Hydrothermal environments
Chinleite-(Y) is a relatively new mineral, approved in 2016 and to date (October 2022) reported only from
the type locality and another locality in the Red Canyon Mining District.
Localities
At the type locality, the Blue Lizard mine, Red Canyon Mining District, San Juan County, Utah, USA,
chinleite-(Y) occurs as a secondary alteration phase.
Chinleite-(Y) crystals are colourless, thin hexagonal prisms up to 0.3 mm long, typically intergrown in
divergent sprays, bow-tie aggregates or subparallel intergrowths.
(MM 81.909-916).
Associated minerals include natrojarosite,
metauranospinite,
johannite, hexahydrite and
gypsum
(Mindat).
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