| 词条 | Hollandite |
| 释义 |
| name = Hollandite | category = Oxide minerals | boxwidth = | boxbgcolor = | image = File:Hollandite-171530.jpg | caption = | formula = Ba(Mn4+6Mn3+2)O16 | molweight = | strunz = 4.DK.05a | dana = 7.9.1.1 | system = Monoclinic | class = Prismatic (2/m) | symmetry = Monoclinic H-M symbol: (2/m) Space group: I2/m | unit cell = | color = Silvery-grey to greyish | habit = | twinning = | cleavage = Distinct / Good, Prismatic | fracture = | tenacity = | mohs = 4 to 6 | luster = | refractive = | opticalprop = | birefringence = | pleochroism = | streak = | gravity = | density = 4.95[1] | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = | other = | references = }}Hollandite (chemical formula: Ba(Mn4+6Mn3+2)O16) is an oxide mineral. It is the barium-manganese (III) endmember of the coronadite group.[2] A mineral, with the chemical composition BaMn4+6Fe3+2O16,[3] that was first found in the Kajlidongri mine in the Jhabua district of Madhya Pradesh, India,[4] had the name hollandite until it was reclassified as ferrihollandite by the International Mineralogical Association in 2012. Ferrihollandite is the barium-iron (III) endmember of the coronadite group.[1] See also
References1. ^1 Mindat - Hollandite 2. ^Mindat - Hollandite 3. ^http://ima-cnmnc.nrm.se/ 4. ^ 3 : Barium minerals|Manganese minerals|Oxide minerals |
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