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This page kindly sponsored by Mark Andrews
Percy Williams Bridgman
Named in 2014 by Chi Ma and Oliver Tschauner in honor of Percy Williams Bridgman [April 21, 1882 Cambridge, Massachusetts, USA - August 20, 1961 Randolph, New Hampshire, USA], winner of the Nobel Prize for Physics in 1946 for his work in high-pressure physics.
Perovskite-type high-pressure phase.

This mineral is believed to compose up to 93% of the lower mantle above around 2700km and therefore is probably the most abundant mineral in the Earth.

It was experimentally proven that bridgmanite may incorporate Na, but not as readily as ringwoodite (Bindi et al., 2016).

Classification of Bridgmanite

Approval Year:

9 : SILICATES (Germanates)
A : Nesosilicates
0 :

Chemical Properties of Bridgmanite

IMA Formula:
Elements listed in formula:

Crystallography of Bridgmanite

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Space Group Setting:
Cell Parameters:
a = 5.02(3) Å, b = 6.90(3) Å, c = 4.81(2) Å
a:b:c = 0.728 : 1 : 0.697
Unit Cell Volume:
V 166.61 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:

Occurrences of Bridgmanite

Type Occurrence of Bridgmanite

Place of Conservation of Type Material:
In the collections of the Smithsonian Institution’s National Museum of Natural History, Washington DC, USA,registration number USNM 7703
Geological Setting of Type Material:
As submicrometer-sized crystals in shock-induced melt veins in the Tenham meteorite.

Relationship of Bridgmanite to other Species

Other Names for Bridgmanite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Bridgmanite

Reference List:
Murakami, M., Ohishi, Y., Hirao, N. & Hirose, K. (2012): A perovskitic lower mantle inferred from high-pressure, high-temperature sound velocity data. Nature 485(7396), 90–94. doi:10.1038/nature11004

Chi Ma and Oliver Tschauner (2014) Earth-building Bridgemanite, Caltech Press release, Katie Neith,

Tschauner, O. and Ma, C. (2014)Bridgmanite, IMA 2014-017. CNMNC Newsletter No. 21, August 2014, page 798; Mineralogical Magazine, 78, 797-804.

Tschauner, O., Ma, C., Beckett, J.R., Prescher, C., Prakapenka, V.B., Rossman, G.R. (2014) Discovery of bridgmanite, the most abundant mineral in Earth, in a shocked meteorite. Science 346, 1110-1112. doi:10.1126/science.1259369

Bindi, L., Tamarova, A., Bobrov, A.V., Sirotkina, E.A., Tschauner, O., Walter, M.J., Irifune, T. (2016): Incorporation of high amounts of Na in ringwoodite: Possible implications for transport of alkali into lower mantle. American Mineralogist: 101: 483-486; (2016)

Internet Links for Bridgmanite URL:
Please feel free to link to this page.

Localities for Bridgmanite

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia (TL)
  • Queensland
    • Charters Towers Region
      • South Gregory
        • Tenham Station
Tschauner, O. and Ma, C. (2014) Bridgmanite, IMA 2014-017. CNMNC Newsletter No. 21, August 2014, page 798; Mineralogical Magazine, 78, 797-804.
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