晶面间距计算公式
正交晶系
1/d2=h2/a2+k2/b2+l2/c2
单斜晶系
1/d2={h2/a2+k2sin2β/b2+l2/c2－2hlcosβ/(ac)}/ sin2β
立方晶系
d=a/(h2+k2+l2)
![](https://wkrtcs.bdimg.com/rtcs/image?w=384.00&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","r":"r_15","w":"384.00","h":"94.00","dataType":"png","c":"word/media/image1.png","imgOriW":384,"imgOriH":94})
六角晶系
四角晶系
![](https://wkrtcs.bdimg.com/rtcs/image?w=288.00&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"288.00","h":"97.00","dataType":"png","c":"word/media/image2.png","imgOriW":288,"imgOriH":97})
单斜晶系
![](https://wkrtcs.bdimg.com/rtcs/image?w=480.00&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"480.00","h":"88.00","dataType":"png","c":"word/media/image3.png","imgOriW":480,"imgOriH":88})
三斜晶系
![](https://wkrtcs.bdimg.com/rtcs/image?w=554.00&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"554.00","h":"225.00","dataType":"png","c":"word/media/image4.png","imgOriW":640,"imgOriH":260})
If Φ is the angle between plane (h1 k1 l1) and (h2 k2 l2), then for
Orthorhombic
![](https://wkrtcs.bdimg.com/rtcs/image?w=361&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"361","h":"94","c":"cf1bacd2dbc1f8090dacfa1f8f1960aa.png"})
Tetragonal
![](https://wkrtcs.bdimg.com/rtcs/image?w=371&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"371","h":"86","c":"ef86e61a0d1b6b9f70754c893702b1ce.png"})
Cubic
![](https://wkrtcs.bdimg.com/rtcs/image?w=330&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"330","h":"62","c":"0625924284812d9effcd9269f54be6dc.png"})
Hexagonal
![](https://wkrtcs.bdimg.com/rtcs/image?w=517&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"517","h":"111","c":"c03a4587b3f19942cb8972cee3de9b28.png"})
VOLUME:
Orthorhombic: =![](https://wkrtcs.bdimg.com/rtcs/image?w=36&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"36","h":"20","c":"900150983cd24fb0d6963f7d28e17f72.png"})
Tetragonal: =![](https://wkrtcs.bdimg.com/rtcs/image?w=31&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"31","h":"21","c":"9dc7fd5904aaf8143db038fdbbe5e856.png"})
Cubic: =![](https://wkrtcs.bdimg.com/rtcs/image?w=21&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"21","h":"21","c":"9d2a98503d9a7e47d19b16d72c97f635.png"})
Hexagonal: =![](https://wkrtcs.bdimg.com/rtcs/image?w=62&md5sum=dd08623c0e00e1c27c6ea552b8757a5e&sign=5117c790b7&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=545&ipr={"t":"img","w":"62","h":"52","c":"ae1328fb803c901b9c6d008d3ac961df.png"})
hcp transition between (UVW) and (uvtw)
U=u-t, V=v-t, W=w
u=1/3(2U-V), v=1/3(2V-U), t= - (u+v), w=W.
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