 |
RRUFF Home | UA Mineralogy | Caltech Mineralogy | The IMA Mineral List | Login |
)
|
)
|
Name: Armalcolite RRUFF ID: R070260 Ideal Chemistry: (Mg,Fe2+)Ti2O5 Locality: Chelyabinsk Oblast', Urals Region, Russia Source: Michael Scott S100770 [view label] Owner: RRUFF Description: Gray semimetallic, elongated tabular crystals on coal Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
| Mineral Group: [ Pseudobrookite (6) ] | ||
| Quick search: [ All Armalcolite samples (3) ] | ||
| RAMAN SPECTRUM | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||
| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||
| POWDER DIFFRACTION | |||||||
|---|---|---|---|---|---|---|---|
| RRUFF ID: | R070260.9 | ||||||
| Sample Description: | Single crystal, powder profile is calculated | ||||||
| Cell Refinement Output: |
a: 9.730(4)Å b: 10.032(4)Å c: 3.735(1)Å alpha: 90° beta: 90° gamma: 90° Volume: 364.6(2)Å3 Crystal System: orthorhombic |
||||||
|
|
||||||
| REFERENCES for Armalcolite | |
|---|---|
|
American Mineralogist Crystal Structure Database Record: [view record] |
|
|
Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
|
|
Anderson A T, Bunch T E, Cameron E N, Haggerty S E, Boyd F R, Finger L W, James O B, Keil K, Prinz M, Ramdohr P, El Goresy A (1970) Armalcolite: a new mineral from the Apollo 11 samples, Geochimica et Cosmochimica Acta Supplement, Proceedings of the Apollo 11 Lunar Science Conference, 1, 55-63 [view file] |
|
|
Fleischer M (1970) New mineral names, American Mineralogist, 55, 2135-2139 [view file] |
|
|
Bowles J F W (1988) Definition and range of composition of naturally occurring minerals with the pseudobrookite structure, American Mineralogist, 73, 1377-1383 [view file] |
|
|
Wechsler B A, Von Dreele R B (1989) Structure refinement of Mg2TiO4, MgTiO3 and MgTi2O5 by time-of-flight neutron powder diffraction, Acta Crystallographica, B45, 542-549 |
|
|
Hayob J L, Essene E J (1995) Armalcolite in crustal paragneiss xenoliths, central Mexico, American Mineralogist, 80, 810-822 [view file] |
|
|
Yang H, Hazen R M (1998) Crystal chemistry of cation order-disorder in pseudobrookite-type MgTi2O5, Journal of Solid State Chemistry, 138, 238-244 |
|
|
Yang H, Hazen R M (1999) Comparative high-pressure crystal chemistry karrooite, MgTi2O5, with different ordering states, American Mineralogist, 84, 130-137 [view file] |
|
|
Liermann H-P, Downs R T, Yang H (2006) Site disorder revealed through Raman spectra from oriented single crystals: a case study on karooite (MgTi2O5), American Mineralogist, 91, 790-793 [view file] |
|
|
Lennie A R, Knight K S, Henderson C M B (2007) Cation ordering in MgTi2O5 (karrooite): probing temperature dependent effects with neutrons, American Mineralogist, 92, 1165-1180 [view file] |
|
|
Sevillano G C, Viñals J, Rebollar M C (2009) Minerales de la vesículas de las Rocas lamproíticas del Afloramiento de la Aljorra (Murcia), Revista de la Sociedad Española de Mineralogia, 11, 43-44 [view file] |
|
|
Zhang A, Pang R, Sakamoto N, Yurimoto H (2020) The Cr-Zr-Ca armalcolite in lunar rocks is loveringite: Constraints from electron backscatter diffraction measurements, American Mineralogist, 105, 1021-1029 |
|
|
Kazheva O N, Zubkova N V, Schafer C, Chukanov N V, Pekov I V, Britvin S N, Pushcharovsky D Y (2021) The pseudobrookite group: crystal chemical features of the armalcolite Fe2+ analogue, Doklady Earth Sciences, 497, 305-309 [view file] |
|
|
Du T R T, Zhang A C, Chen J N, Wen Y Y (2024) Subsolidus breakdown of armalcolite: Constraints on thermal effects during shock lithification of lunar regolith, American Mineralogist, 109, 24-34 |
|
|
|
