Elements of mineralogy, crystallography and blowpipe analysis from a practical standpoint .. . 1. Basal Pinacoid, 2. Macro Pinacoid, 3. Brachy Pinacoid,Each face is parallel to one axis. 4. Hemi Brachy Dome, 5. Hemi Macro Dome, 6. Hemi Prism, The Limit Forms in Detail. I. Basal Pinacoid.— xd:(xh:c; o; ^ 001 of two faces parallel to the basal axes. The faces cin Figs 228 and 233. 005 : b: 7>icd: oab : mcd :nb: 00c m — / Miller. {001 ;.i 100 yi 010;. { okl \\ hoi \\ hho \ TRICLINIC SYSTEM. 63 2. Macro PiNAcoiD.—^: 00^ :00c; i—i; ^ 100 [>.Composed of two faces parallel to the ma
Elements of mineralogy, crystallography and blowpipe analysis from a practical standpoint .. . 1. Basal Pinacoid, 2. Macro Pinacoid, 3. Brachy Pinacoid,Each face is parallel to one axis. 4. Hemi Brachy Dome, 5. Hemi Macro Dome, 6. Hemi Prism, The Limit Forms in Detail. I. Basal Pinacoid.— xd:(xh:c; o; ^ 001 of two faces parallel to the basal axes. The faces cin Figs 228 and 233. 005 : b: 7>icd: oab : mcd :nb: 00c m — / Miller. {001 ;.i 100 yi 010;. { okl \\ hoi \\ hho \ TRICLINIC SYSTEM. 63 2. Macro PiNAcoiD.—^: 00^ :00c; i—i; ^ 100 [>.Composed of two faces parallel to the macro and vertical axes. The faces a of Figs. 228, 232, 233 and 234. 3. Brachy PiNACOiD.— CK,a? cac; i-l; .j 010)^.Composed of two faces, each parallel to the brachy and vertical axes. The faces b of Figs. 228, 232, and 233. 4. Hemi Brachy Dosies. Composed of two faces, Fig. 229, parallel to a and intersectingb and c in distances not simply related. According to the positionthe form may be : Right upper, co Left upper, 00 a : b mcmc { okl\{ okl\ Fig. 229. Fig. 230. Fig.
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