High-Pressure and Planetary Mineralogy

Potassium in the clinopyroxene structure

First synthesis

discovery in nature

phase relations 1

phase relations 2

K-Cpx at HP

general review

Sodium in the garnet structure

Na-garnet_01

Na-garnet_02

Na-garnet_03

Na2MgSi5O12

trace elements in Na-garnet

Na2MgSi5O12

Chromium in mantle minerals

Cr-Anhydrous Phase B

Cr-majorite

Cr-bridgmanite

Cr-akimotoite

Cr-wadsleyite

MgCr2O4, post-spinel phase

Titanium in mantle minerals

MgTiSi2O7 (weberite structure)

Na-Ti-pyroxenes

Ti-bridgmanite (superstructure)

Ti-hydrous and anhydrous Phase B

Ti-rich phases in the transition zone

Planetary Mineralogy

asimowite

hemleyite

shenzhuangite

ringwoodite-Q

hiroseite

poirierite

elgoresyite

...see also all the studies on natural quasicrystals...