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Mineralpedia Details for Kainosite-(Y)

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Kainosite-(Y)

Kainosite-(Y)

Named after the Greek word kainos, meaning “unusual,” in reference to its rarity and exotic composition. Kainosite can be found in pegmatite and granite vugs. Localities for Kainosite can be found in Norway, Sweden, Switzerland, Austria, Italy, Russia, the United States, and Canada. Assocaited minerals include chamosite, pyrite, quartz, calcite, sphalerite, fluorite, uraninite, zircon, molybdenite, diopside, magnetite, clinochlore, and apatite.

 Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kainositey.pdf

Formula
Ca2Y2(SiO3)4(CO3)·H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Wheat Sheaf 
Cleavage
Good, None, None 
Luster
Vitreous - Resinous 
Color
brown, colorless, green yellow, yellow, light yellow brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
5-6 
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Kainosite-(Y) from Washington Pass, Okanogan Co., Washington, United States

Kainosite-(Y)
            from Washington Pass, Okanogan Co., Washington, United States

Micro octahedral crystals to less than 0.75mm occurring on dark green prismatic Gadolinite.

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