Crystals in the World around Us
William Perez
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Notes
1.
Rocks and Minerals
, Martin, A. and Parker, B.M.. New York Golden Press, 1974
2. Ibid. p. 80
3. Ibid. R. 94
4. See E. Wood’s book,
A Handbook for Teachers, Crystals
.
5.
The Nature of Solids
, A. Holden, Columbia University Press.
