(1)  An indictment shall conform as nearly as may be to the forms set out in Appendix C , the statement of the crime and the particulars thereof being varied according to the circumstances of each particular case. Figures and abbreviations may be used in an indictment for expressing anything which is commonly expressed thereby.

(2)  The forms of indictment set forth in Appendix C shall be taken as a guide as to what particulars are necessary.