Attikaite

{{Short description|Arsenate mineral of copper and aluminium}}

{{Infobox mineral

| name = Attikaite

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| image = Attikaite-91256.jpg

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| caption = Attikaite found at its type locality

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| formula = Ca{{sub|3}}Cu{{sub|2}}Al{{sub|2}}(AsO{{sub|4}}){{sub|4}}(OH){{sub|4}}·2H{{sub|2}}O

| IMAsymbol = Atk

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| color = light blue, greenish blue

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| gravity = 3.2

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Attikaite is a copper calcium aluminum arsenate mineral with the chemical formula Ca{{sub|3}}Cu{{sub|2}}Al{{sub|2}}(AsO{{sub|4}}){{sub|4}}(OH){{sub|4}}·2H{{sub|2}}O. It was named after Attica Prefecture, where it was first identified.[https://mindat.org/min-30778.html Attikaite] {{Webarchive|url=https://web.archive.org/web/20190321214401/https://www.mindat.org/min-30778.html |date=2019-03-21 }} on mindat.org