25572
The crystals present trigonal system , space group P32 with Z = 3 , unit cell dimensions : a = 12 . 2211 ( 4 ) , c = 17 . 5372 ( 7 ) A ; V = 2268 . 4 ( 1 ) A ( 3 ) , mu = 0 . 082 mm ( - 1 ) ; d = 1 . 183 g cm ( - 3 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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