It breaks with a rough, hackly fracture, is easily pulverised, and its powder is of a bright buff-yellow colour. |
The gold grains are hackly and contain quartz and, are consistent with having been derived from nearby quartz vein sources. |
The grains are irregularly shaped and hackly and do not show evidence of rounding. |
Splintery fracture is breakage into elongated fragments like splinters of wood, while hackly fracture is breakage along jagged surfaces. |
It offers no indications of internal structure, but, on being separated by mechanical violence, exhibits a hackly fracture. |