Macro-prism and Brachy-pinacoid Small 320×205 Medium 640×411 Large 1024×657 Download Tiff Original 2400×1540 | (189.4 KB) Description "This consists of four faces parallel to the brachy axis." -The Encyclopedia Britannica 1910 Keywords brachy, crystal, macro, pinacoid, prism Galleries Prisms Source: Encyclopaedia Britannica (11th ed., vol. 7) (New York, NY: The Encyclopaedia Britannica Company, 1910)
