Wardite

<p>Wardite is a hydrous sodium aluminium <a href="/facts/Phosphate/FDGVCxUG">phosphate</a> <a href="/facts/Hydroxide/zW0wxpWD">hydroxide</a> mineral with formula: <a href="/facts/Sodium/eYuSPu2V">Na</a><a href="/facts/Aluminum/7wmR8jYE">Al</a>3(<a href="/facts/Phosphorus/27xCeIqs">P</a><a href="/facts/Oxygen/acyn6o8r">O</a>4)2(O<a href="/facts/Hydrogen/BoYHjl0J">H</a>)4·2(<a href="/facts/Water/0lkXnJPK">H2O</a>). Wardite is of interest for its rare crystallography.  It crystallizes in the <a href="/facts/Tetragonal/12Aop255">tetragonal</a> trapezohedral class and is one of only a few minerals in that class. Wardite forms vitreous green to bluish green to white to colorless crystals, with pyramidal {102} or {114} faces and  with {001} usually present masses. Also appears as fibrous encrustations. It has a <a href="/facts/Mohs_hardness/wXBMcVIm">Mohs hardness</a> of 5 and a <a href="/facts/Specific_gravity/ySquGd2x">specific gravity</a> of 2.81–2.87.
</p><p>Wardite was named for <a href="/facts/Henry_Augustus_Ward/uel43K1d">Henry Augustus Ward</a> (1834–1906) of the <a href="/facts/University_of_Rochester/RT7TWLzd">University of Rochester</a> in <a href="/facts/New_York_(state)/mnl67G1G">New York</a>. It first described in 1896 for an occurrence in Clay Canyon, <a href="/facts/Fairfield%2c_Utah/rAQ3D1hA">Fairfield</a>, <a href="/facts/Utah_County/qXzWB1x1">Utah County</a>, <a href="/facts/Utah/te7zUyBX">Utah</a>, US.
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Wardite open-in-new

Wardite