##NAMES=Manjiroite ##RRUFFID=R060379 ##IDEAL CHEMISTRY=Na(Mn^4+^_7_Mn^3+^)O_16_ ##LOCALITY=Wessels mine, Kalahari Manganese Field, South Africa ##OWNER=RRUFF ##SOURCE=Michael Scott ##DESCRIPTION=Steel gray bed of parallel fibers ##DIFFRACTION SAMPLE DESCRIPTION=Powder, using Mo radiation ##STATUS=The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis ##URL=rruff.info/R060379 ##MEASURED CHEMISTRY=(Na_0.60_K_0.28_Ca_0.12_)_Σ=1_(Mn^4+^_7.40_Mn^2+^_0.44_Mg_0.11_Si_0.03_Al_0.02_)_Σ=8_O_16_·2H_2_O ##CELL PARAMETERS=a: 9.970(5) b: 9.970(5) c: 2.8613(6) alpha: 90 beta: 90 gamma: 90 volume: 284.4(3) crystal system: tetragonal ##END=