Russellite

Russellite

Infobox mineral
name = Russellite
category =
boxwidth =
boxbgcolor =


imagesize =
caption =
formula = (BiO2) [WO4]
molweight =
color = yellow-green, yellow
habit =
system = orthorhombic
twinning =
cleavage =
fracture =
tenacity =
mohs = 3½
luster =
polish =
refractive =
opticalprop =
birefringence =
dispersion = relatively strong
pleochroism =
fluorescence=
absorption =
streak =
gravity =
density = 7.33 - 7.37 g/cm3
melt =
fusibility =
diagnostic =
solubility =
diaphaneity =
other =
references = [http://mindat.org/min-3478.html Mindat.org]

Russellite is a mineral with the chemical formula (BiO2) [WO4] . [http://www.mindat.org/min-3478.html Russellite: Russellite mineral information and data ] ]

In the orthorhombic crystal system, Russellite is yellow or yellow-green in colour, with a Mohs hardness of 3½.

Russellite is named for the mineralogist Sir Arthur Russell, and the type locality is the Castle-an-Dinas Mine, near St Columb Major in Cornwall, where it was found in wolframite.cite book
last = Embrey
first = P. G.
authorlink =
coauthors = Symes, R. F.
editor =
others =
title = Minerals of Cornwall and Devon
year = 1987
month =
publisher = British Museum (Natural History)
location = London
language =
isbn = 0565009893
pages = p.54
chapter = The Mines and Mining ]

References


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