Biotite
	Ohta T, Takeda H, Takeuchi Y
	American Mineralogist 67 (1982) 298-310
	Mica polytypism: Similarities in the crystal structures of coexisting 1M and
	2M(1) oxybiotite
	Sample: in the 2M1 setting
	_database_code_amcsd 0000862
	5.3175 9.212 19.976 90 95.09 90 C2/c
	atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
	Mg1 .75 .25 0 .612 .0051 .0015 .00071 0 .00014 0
	Fe1 .75 .25 0 .200 .0051 .0015 .00071 0 .00014 0
	Al1 .75 .25 0 .188 .0051 .0015 .00071 0 .00014 0
	Mg2 .2321 .07750 -.00001 .513 .0077 .00186 .00068 .0016 0 .00009
	Fe2 .2321 .07750 -.00001 .296 .0077 .00186 .00068 .0016 0 .00009
	Ti2 .2321 .07750 -.00001 .168 .0077 .00186 .00068 .0016 0 .00009
	Al2 .2321 .07750 -.00001 .023 .0077 .00186 .00068 .0016 0 .00009
	Si1 .4624 .24902 .13850 .712 .0046 .0015 .00065 .0003 .00007 0
	Al1 .4624 .24902 .13850 .280 .0046 .0015 .00065 .0003 .00007 0
	Fe1 .4624 .24902 .13850 .008 .0046 .0015 .00065 .0003 .00007 0
	Si2 .9645 .4163 .13857 .708 .0049 .0017 .00063 .0003 .00003 .00004
	Al2 .9645 .4163 .13857 .264 .0049 .0017 .00063 .0003 .00003 .00004
	Fe2 .9645 .4163 .13857 .028 .0049 .0017 .00063 .0003 .00003 .00004
	K 0 .0832 .25 .0164 .0056 .00178 0 .00043 0
	O11 .7421 .3139 .1664 .0102 .0047 .00089 -.0016 .0001 .00015
	O21 .2416 .3512 .1677 .0103 .0045 .00088 .0024 -.0001 -.00032
	O22 .4352 .0822 .1675 .0163 .0028 .00085 -.0001 .0008 0
	O31 .4309 .2477 .05473 .0054 .0017 .00064 .0011 .0001 -.0001
	O32 .9392 .4172 .05466 .0053 .0018 .00060 .0014 0 -.0001
	O4 .9333 .0827 .04994 .0071 .0023 .00066 .0020 0 -.0003
	Download AMC data (View Text File) Download CIF data (View Text File) Download diffraction data (View Text File) View JMOL 3-D Structure (permalink)

Download in: Amc Format Cif Format Diffraction data

Multiple datasets can be concatenated into a single downloadable file by selecting the datasets and then clicking

Multiple datasets can be downloaded as individual files inside a ZIP archive by selecting the datasets and then clicking