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apjohnite

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Apjohnite: Mineral information, data and localities.
Named in honor of James Apjohn (1 September 1796, Ireland - 3 June 1886, Blackrock, Co. Dublin, Ireland), Professor of Chemistry and Mineralogy, Trinity ... www.mindat.org
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Apjohnite - Wikipedia
Apjohnite (IMA symbol: Apj) is a manganese aluminium sulfate mineral with the chemical formula Mn2+Al2(SO4)4·22H2O. It was named after Trinity College ... en.wikipedia.org
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Apjohnite Mineral Data - Mineralogy Database
General Apjohnite Information. Help on Chemical Formula: Chemical Formula: MnAl2(SO4)4•22(H2O). Help on Composition: Composition: Molecular Weight = 889.49 ... webmineral.com
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apjohnite
apjohnite Min. (ˈæpdʒɒnaɪt) [named in 1847, from its first analyzer Apjohn (Phil. Mag. XII. 103; 1838).] Manganese alum; a double sulphate of potash and manganese, occurring as a mineral in fibrous or asbestiform masses, white, and with a silky lustre. Oxford English Dictionary
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APJOHNITE Definition & Meaning - Merriam-Webster
The meaning of APJOHNITE is a mineral MnSO4·Al2(SO4)3·22H2O consisting of manganese aluminum sulfate containing water and occurring in crusts or fibrous ... www.merriam-webster.com
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[PDF] Apjohnite - RRuff
Distribution: From Maputo (Delagoa) Bay, near Maputo Mozambique. At Terlano, Bolzano, Trentino-Alto Adige, Italy. From Smolnık (Szomolnok), 16 km northeast ... rruff.geo.arizona.edu
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Apjohnite - RRUFF Database: Raman, X-ray, Infrared, and Chemistry
Name: Apjohnite ; RRUFF ID: R060231 ; Ideal Chemistry: Mn2+Al2(SO4)4·22H2O ; Locality: Val d'Adige, Bolzano, Italy ; Source: Michael Scott S100270 [view label] rruff.info
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apjohnite - Wiktionary, the free dictionary
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, manganese, oxygen, and sulfur. References. edit. David Barthelmy (1997–2025) “ ... en.wiktionary.org
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Apjohnite Mineral Specimen For Sale - Dakota Matrix Minerals
Apjohnite is a manganese-aluminum sulfate with crystal chemistry somewhere in the Halotrichite group. www.dakotamatrix.com
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Electron paramagnetic resonance, optical absorption and IR ...
Apjohnite, a naturally occurring Mn-bearing pseudo-alum from Terlano, Bolzano, Italy, has been characterized by EPR, optical, IR and Raman spectroscopy. www.sciencedirect.com
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James Apjohn
Subsequently, it was named 'Apjohnite' in his honour. Apjohn was born on 1 September 1796 at his father's property, Sunville, in Pallasgrean, Co. wikipedia.org
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Sulfate mineral
Coquimbite, 50 Paracoquimbite; 55 Rhomboclase, 60 Kornelite, 65 Quenstedtite, 70 Lausenite; 75 Lishizhenite, 75 Romerite; 80 Ransomite; 85 Bilinite, 85 Apjohnite wikipedia.org
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manganese
manganese (ˈmæŋgəniːz) Also 7 manganes, 9 manganeze. [a. F. manganèse (16th c.), a. It. manganese, one of the many corrupt forms of L. magnēsia: see magnesia 2. The word appears in Ger. as mangan (hence Du. mangaan, Sw. mangan). Cf. obs. F. mangane.] 1. A black mineral (now recognized as an oxide of... Oxford English Dictionary
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alum
▪ I. alum, n. (ˈæləm) Forms: 4 alem, 4–5 alym, 4–8 alom, 5–7 alume, alome, 6 alme, 6–7 allume, 6–8 allom(e, allum, 4– alum. [a. OFr. alum:—L. alūmen, the same substance: cf. alūta tawed skin.] 1. A whitish transparent mineral salt, crystallizing in octahedrons, very astringent, used in dyeing, tawin... Oxford English Dictionary
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Alum
Other double sulfates A pseudo alum is a double sulfate of the typical formula , where is a divalent metal ion, such as cobalt (wupatkiite), manganese (apjohnite wikipedia.org
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