dmitryivanovite

{{Infobox mineral

| name =Dmitryivanovite

| category = Oxide mineral

| boxwidth =

| boxbgcolor =

| image =

| imagesize =

| alt =

| caption =

| formula = CaAl₂O₄

| IMAsymbol = Div{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}

| molweight =

| strunz = 4.BC.10

| dana =

| system = Monoclinic

| class = Prismatic (2/m)

| symmetry = P2₁/c

| unit cell = a = 7.95, b = 8.62
c = 10.25 [Å]; β = 93.1°; Z = 12

| color = Colorless

| colour =

| habit = Phase in CAI of 470 (NWA470) CH3 chondrite as subhedral grains

| references = [http://webmineral.com/data/Dmitryivanovite.shtml Webmineral data][http://www.mindat.org/min-30909.html Mindat.org]

}}

Dmitryivanovite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl₂O₄. It was reported in 2009{{cite journal |doi = 10.2138/am.2009.3080 |title = Dmitryivanovite: A new high-pressure calcium aluminum oxide from the Northwest Africa 470 CH3 chondrite characterized using electron backscatter diffraction analysis |year = 2009 |last1 = Mikouchi |first1 = T. |last2 = Zolensky |first2 = M. |last3 = Ivanova |first3 = M. |last4 = Tachikawa |first4 = O. |last5 = Komatsu |first5 = M. |last6 = Le |first6 = L. |last7 = Gounelle |first7 = M. |journal = American Mineralogist |volume = 94 |issue = 5–6 |pages = 746–750|bibcode = 2009AmMin..94..746M |s2cid = 55193804 }} in a calcium-aluminium-rich inclusion in the carbonaceous chondrite meteorite 470 (NWA470) CH3, which landed in North Africa. The mineral name was chosen to{{cite web | url = http://pubsites.uws.edu.au/ima-cnmnc/CNMNC%20NEWSLETTER%205.pdf | title = New minerals approved by the IMA-CNMNC in September 2010 | access-date = 2011-05-09 | archive-date = 2012-03-20 | archive-url = https://web.archive.org/web/20120320181827/http://pubsites.uws.edu.au/ima-cnmnc/CNMNC%20NEWSLETTER%205.pdf | url-status = dead }} honor Dmitriy A. Ivanov (1962–1986), a geologist, mineralogist, and petrologist who died on a field expedition.{{cite journal | doi = 10.1017/S1431927610056060 | title = Structures of Extraterrestrial Minerals Revealed by EBSD | year = 2010 | last1 = Zolensky | first1 = M | last2 = Mikouchi | first2 = T | journal = Microscopy and Microanalysis | volume = 16 | issue = S2 | pages = 676–677|bibcode = 2010MiMic..16S.676Z | doi-access = free }}{{cite journal | doi =10.1038/180292a0 | title =Crystal Structure of Calcium Monoaluminate | year =1957 | last1 =Dougill | first1 =Maryon W. | journal =Nature | volume =180 | issue =4580 | pages =292–293|bibcode = 1957Natur.180..292D | s2cid =42936397 }}

It is the high-pressure CaAl₂O₄ dimorph of krotite.