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GROUTITE

Groutite

Manganese oxide mineral

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

Groutite

List of minerals

Greenalite Greenockite Gregoryite Greifensteinite Greigite Grossite Grossular Groutite Grunerite Guettardite Gugiaite Guilleminite Gunningite Guyanaite Gwihabaite

List of minerals

List_of_minerals

Small to medium-sized cavity inside rock

host for bi-pyramidal, brownish-red crystals of wulfenite Crystallized groutite scattered about a hollow vug In a vug of limonite are intergrown clusters

Vug

Cro-Magnon

Earliest anatomically modern humans in Europe and West Asia

Country, the inhabitants were using the locally rare manganese mineral groutite in their paintings, which they possibly mined out of the cave itself. Nonetheless

Cro-Magnon

John W. Gruner

American mineralogist (1890–1981)

scientifically described and named two minerals: minnesotaite (1944) and groutite (1945). After completing secondary school education, he worked for two

John W. Gruner

John_W._Gruner

List of mineral symbols

Grossular Grs Gainesite Gns Geffroyite Gef Gittinsite Git Goslarite Gos Groutite Gro Gaitite Gt Gehlenite Gh Giuseppettite Giu Gottardiite Gtt Grumantite

List of mineral symbols

List_of_mineral_symbols

Manganite

Mineral composed of manganese oxide-hydroxide, MnO(OH)

been a common find in Neanderthal archaeological sites. Manganese oxide Groutite Wikimedia Commons has media related to Manganite. Warr, L.N. (2021). "IMA–CNMNC

Manganite

List of minerals recognized by the International Mineralogical Association (G)

[342] [343] [344] (IUPAC: tricalcium dialuminium tri(tetraoxysilicate)) Groutite ("O(OH)" group: 1947) 4.FD.10 [345] [346] [347] (IUPAC: hydromanganese(III)

List of minerals recognized by the International Mineralogical Association (G)

List_of_minerals_recognized_by_the_International_Mineralogical_Association_(G)

Manganese(III) oxide

Chemical compound

Eugen Libowitzky (1997). "Hydrogen Bonding and Jahn-Teller Distortion in Groutite,α-MnOOH, and Manganite,γ-MnOOH, and Their Relations to the Manganese Dioxides

Manganese(III) oxide

Manganese(III)_oxide

Oxide mineral

Class of minerals containing oxygen

octahedra: 05 Spertiniite; 10 Bracewellite, 10 Diaspore, 10 Guyanaite, 10 Groutite, 10 Goethite, 10 Montroseite, 10 Tsumgallite; 15 Manganitev; 20 Cerotungstite-(Ce)

Oxide mineral

Oxide_mineral

Ramsdellite

Oxide mineral

System Orthorhombic Point group 2/m 2/m 2/m Form Often pseudomorphs of groutite crystals Crystal habit Platy, fibrous or massive Physical Cleavage Prominent

Ramsdellite

Frank Fitch Grout

American petrographer, geologist

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)

Frank Fitch Grout

Frank_Fitch_Grout

Classification of non-silicate minerals

List of IMA recognized minerals and groupings

group (Orthorhombic, Pnma or Pnmd) Diaspore AlO(OH), Goethite Fe3+O(OH), Groutite Mn3+O(OH), Montroseite (V3+,Fe3+,V4+)O(OH), Bracewellite Cr3+O(OH), Tsumgallite

Classification of non-silicate minerals

Classification_of_non-silicate_minerals