a = 5.3 Å, b = 5.278 Å, c = 5.307 Å; β = 114.36°; Z = 4
Identification
Color
Dark steel-gray to black, reddish brown in transmitted light, gray-white with brownish tint, with blood-red internal reflections in reflected light
Crystal habit
Slender prismatic crystals, massive to fibrous, pseudo-orthorhombic
Twinning
{011}
Cleavage
{010} perfect, {110} and {001} good
Fracture
Uneven
Tenacity
Brittle
Mohs scale hardness
4
Luster
Sub-metallic
Streak
Reddish brown to nearly black
Diaphaneity
Opaque, transparent on thin edges
Specific gravity
4.29–4.34
Optical properties
Biaxial (+)
Refractive index
nα = 2.250(2) nβ = 2.250(2) nγ = 2.530(2)
Birefringence
δ = 0.280, Bireflectance: distinct in grays
Pleochroism
Faint
2V angle
Small
Dispersion
Very strong
References
[2][3][4][5][6][7]
Manganite is a mineral composed of manganese oxide-hydroxide, MnO(OH), crystallizing in the monoclinic system (pseudo-orthorhombic).[3] Crystals of manganite are prismatic and deeply striated parallel to their length; they are often grouped together in bundles. The color is dark steel-grey to iron-black, and the luster brilliant and submetallic. The streak is dark reddish brown. The hardness is 4, and the specific gravity is 4.3. There is a perfect cleavage parallel to the brachypinacoid, and less-perfect cleavage parallel to the prism faces. Twinned crystals are not infrequent.
The mineral contains 89.7% manganese sesquioxide; it dissolves in hydrochloric acid with evolution of chlorine.
Manganite is a mineral composed of manganese oxide-hydroxide, MnO(OH), crystallizing in the monoclinic system (pseudo-orthorhombic). Crystals of manganite...
Lanthanum manganite is an inorganic compound with the formula LaMnO3, often abbreviated as LMO. Lanthanum manganite is formed in the perovskite structure...
Lanthanum strontium manganite (LSM or LSMO) is an oxide ceramic material with the general formula La1−xSrxMnO3, where x describes the doping level. It...
radiolysis techniques: HMnO− 4 ⇌ MnO2− 4 + H+ pKa = 7.4 ± 0.1 The name "manganite" is used for compounds formerly believed to contain the anion MnO3− 3...
Photoexcitation has been shown to produce persistent states in vanadates and manganite materials, leading to filamentary paths of a modified charge ordered phase...
the most common manganese minerals. Pyrolusite occurs associated with manganite, hollandite, hausmannite, braunite, chalcophanite, goethite, and hematite...
orange, or yellow, black gossans from manganese oxides such as pyrolusite, manganite, and especially psilomelane form at the oxidized portion of manganese-rich...
first-order magnetic transitions. These include colossal-magnetoresistance manganite materials, magnetocaloric materials, magnetic shape memory materials,...
Pyrolusite (MnO2) in oxidized manganese zones like laterites and skarns; manganite (MnO(OH)) and braunite (3Mn2O3 MnSiO3) with pyrolusite Mercury Hg Scientific...
levels of manganese and smelting them directly, or by adding pyrolusite or manganite to previously smelted iron in a cupola furnace. Spathic iron ore hartmann...
up LMO in Wiktionary, the free dictionary. LMO may refer to: Lanthanum manganite (LaMnO3), an inorganic compound Lithium ion manganese oxide battery (LiMn2O4...
Laboratory), a particle physics laboratory in France Lanthanum strontium manganite, a crystal used as a cathode material Laser scanning microscopy, a microscopy...
high magnetic fields across Europe. Her doctoral research considered manganites that exhibit colossal magnetoresistance. After completing her doctorate...
Processes due to wind activity Desert pavement – Type of desert earth surface Manganite – hydroxide mineralPages displaying wikidata descriptions as a fallback...
forming mixed oxides, for example for production of lanthanum strontium manganite, primarily for solid oxide fuel cell applications; for production of certain...
strontium titanate/ceria composite for SORFC cathode, and lanthanum strontium manganite (LSM) for SORFC anode. Other anode materials can be lanthanum strontium...
mineral is readily distinguished from other hydrous manganese oxides (manganite and wad) by its greater hardness 5 to 6; the specific gravity varies from...
lattice distortions associated with charge order were later mapped in the manganite lattice to reveal striped domains containing topological disorder. The...
interfacial evolution from charge compensation to metallic screening across the manganite metal–insulator transition". Nature Communications. 5: 3464. Bibcode:2014NatCo...
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