{{Short description|Rare silicate mineral}} {{Infobox mineral | name = Crossite | boxwidth = | boxbgcolor = | image = Crossite with natrolite Complex Silicate near the Dallas Gem Mine, San Benito County, California 2397.jpg | imagesize = | alt = | caption = Crossite from California | category = Amphibole – Inosilicates | formula = Na<sub>2</sub>(Mg,Fe)<sub>3</sub>(Al,Fe)<sub>2</sub>Si<sub>8</sub>O<sub>22</sub>(OH)<sub>2</sub> | strunz = | dana = | symmetry = | unit cell = | molweight = | color = blue, blue-green | colour = | habit = | system = Monoclinic | twinning = | cleavage = | fracture = | tenacity = | mohs = 6 | luster = Vitreous | streak = light blue | diaphaneity = Transparent to translucent | gravity = 3.16 | density = | polish = | opticalprop = Biaxial (-) | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = }}
'''Crossite''' is an inosilicate double chain sodic amphibole and is a rare silicate mineral belonging to the riebeckite group. It is considered an intermediate between the amphiboles glaucophane and magnesioriebeckite, which form a series.<ref>[http://www.galleries.com/minerals/silicate/riebecki/riebecki.htm RIEBECKITE (Sodium Iron Magnesium Silicate Hydroxide)<!-- Bot generated title -->]</ref> IMA status: discredited 1997.
Crossite is named after Charles Whitman Cross, an American USGS petrologist.
==References== {{Reflist}}
==External links== *[http://www.mindat.org/min-1160.html Crossite on Mindat] *[http://webmineral.com/data/Crossite.shtml Crossite on Webmineral]
Category:Sodium minerals Category:Iron(II,III) minerals Category:Magnesium minerals Category:Amphibole group
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