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Groutite is a
manganese oxide mineral with
formula Mn3+O(OH). It is a
member of the
diaspore group and is
trimorphous with
manganite and feitknechtite...
- host for bi-pyramidal, brownish-red
crystals of
wulfenite Crystallized groutite scattered about a
hollow vug In a vug of
limonite are
intergrown clusters...
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Greenalite Greenockite Gregoryite Greifensteinite Greigite Grossite Grossular Groutite Grunerite Guettardite Gugiaite Guilleminite Gunningite Guyanaite Gwihabaite...
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Grossular Grs
Gainesite Gns
Geffroyite Gef
Gittinsite Git
Goslarite Gos
Groutite Gro
Gaitite Gt
Gehlenite Gh
Giuseppettite Giu
Gottardiite Gtt Grumantite...
- Country, the
inhabitants were
using the
locally rare
manganese mineral groutite in
their paintings,
which they
possibly mined out of the cave itself. Based...
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scientifically described and
named two minerals:
minnesotaite (1944) and
groutite (1945).
After completing secondary school education, he
worked for two...
-
introducing the term
lopolith into the
science of geology. The
mineral groutite is
named in Grout's
honor (based upon a 1945
discovery by John
Walter Gruner)...
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Eugen Libowitzky (1997). "Hydrogen
Bonding and Jahn-Teller
Distortion in
Groutite,α-MnOOH, and Manganite,γ-MnOOH, and
Their Relations to the
Manganese Dioxides...
- octahedra: 05 Spertiniite; 10 Bracewellite, 10 Diaspore, 10 Guyanaite, 10
Groutite, 10 Goethite, 10 Montroseite, 10 Tsumgallite; 15 Manganitev; 20 Cerotungstite-(Ce)...
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System Orthorhombic Point group 2/m 2/m 2/m Form
Often pseudomorphs of
groutite crystals Crystal habit Platy,
fibrous or m****ive
Physical Cleavage Prominent...
