Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
References
[2][3][4]
Erythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula Co 3(AsO 4) 2•8H 2O. Erythrite and annabergite, chemical formula Ni 3(AsO 4) 2•8H 2O, or nickel arsenate form a complete series with the general formula (Co,Ni) 3(AsO 4) 2•8H 2O.
Erythrite from Morocco
Erythrite crystallizes in the monoclinic system and forms prismatic crystals. The color is crimson to pink and occurs as a secondary coating known as cobalt bloom on cobalt arsenide minerals. Well-formed crystals are rare, with most of the mineral manifesting in crusts or small reniform aggregates.
Erythrite was first described in 1832 for an occurrence in Grube Daniel, Schneeberg, Saxony,[4] and takes its name from the Greek έρυθρος (erythros), meaning red.[3] Historically, erythrite itself has not been an economically important mineral, but the prospector may use it as a guide to associated cobalt and native silver.[citation needed]
Erythrite occurs as a secondary mineral in the oxide zone of Co–Ni–As bearing mineral deposits. It occurs in association with cobaltite, skutterudite, symplesite, roselite-beta, scorodite, pharmacosiderite, adamite, morenosite, retgersite, and malachite.[2]
Notable localities are Cobalt, Ontario; La Cobaltera, Chile, Schneeberg, Saxony, Germany; Joachimsthal, Czech Republic; Cornwall, England; Bou Azzer, Morocco; the Blackbird mine, Lemhi County, Idaho; Sara Alicia mine, near Alamos, Sonora, Mexico; Mt. Cobalt, Queensland and the Dome Rock copper mine, Mingary, South Australia.[2]
^ abcAnthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (2005). "Erythrite" (PDF). Handbook of Mineralogy. Mineral Data Publishing. Retrieved 27 July 2022.
^ abErythrite, Mindat.org, retrieved 27 July 2022
^ abBarthelmy, David (2014). "Erythrite Mineral Data". Webmineral.com. Retrieved 27 July 2022.
Erythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula Co 3(AsO 4) 2•8H 2O. Erythrite and annabergite, chemical formula...
20th centuries, several synonyms were in use for erythritol: erythrol, erythrite, erythoglucin, eryglucin, erythromannite and phycite. Zerose is a tradename...
atmosphere, weathering occurs; the sulfide minerals oxidize and form pink erythrite ("cobalt glance": Co3(AsO4)2·8H2O) and spherocobaltite (CoCO3). Cobalt...
crystallizing in the monoclinic system and isomorphous with vivianite and erythrite. Crystals are minute and capillary and rarely met with, the mineral occurring...
monoclinic form of As2O3) as well as realgar (As4S4), orpiment (As2S3) and erythrite, Co3(AsO4)2·8H2O. Arsenolite belongs to the minerals which are highly...
cobalt-bearing mineral deposits as a rare phase associated with roselite, erythrite, annabergite and cobalt rich calcite and dolomite. Warr, L.N. (2021)....
strategically important metal cobalt. Secondary weathering incrustations of erythrite, hydrated cobalt arsenate, are common.[citation needed] A variety containing...
as an accessory in silver mining districts. It alters to the arsenate erythrite in the secondary environment. Wikimedia Commons has media related to Safflorite...
beudantite, carminite, dussertite, pharmacolite, pitticite, adamite and erythrite. The name arseniosiderite reflects two major elements of the mineral,...
arsenate-containing minerals include adamite, alarsite, annabergite, erythrite and legrandite. When two arsenate ions balance the charge in a formula...
the lichens & their proximate constituents and derivatives, including Erythrite; and for his researches on the action of charcoal in purifying air." 1872...
Associated minerals include: bismutite, smaltite, native bismuth, atelestite, erythrite, malachite and barite. It was discovered in 1879 near J´achymov, Czech...
remainder of the deposit was extracted. Later, in 1759, a vein carrying erythrite, an ore of cobalt, was found and gave a new lease of life to the mines...
mineral claims that he found in the course of his work, and chanced upon Erythrite, often an indication of associated cobalt and native silver. (A fanciful...
North Bay, Ontario, where he had built a small cabin, there chanced upon Erythrite, often an indication of associated cobalt and native silver. A fanciful...
North Bay, Ontario– where he had built a small cabin –there chanced upon Erythrite, often an indication of associated cobalt and native silver. (A fanciful...
calcium-bearing rocks, and as a recent efflorescence in mine workings. Erythrite and pharmacolite are common associated minerals. It was first described...
zone of arsenic-bearing ore deposits. It occurs with picropharmacolite, erythrite and aragonite. It has been reported from the Richelsdorf Mountains, Hesse...
the two species are well differentiated. An endemic species of mite (Erythrites jacksoni) is an ectoparasite of this grasshopper. Bigelow, R. S. (1967)...
Mile 103. About two weeks after McKinley and Darragh, LaRose noticed erythrite along the tracks. LaRose noted "One evening I found a float, a piece as...
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