Specimens Austinite is fairly rare but popular collection mineral. It forms in the oxidation zone of zinc ore deposits, often with the sometimes similar looking adamite . Austinite is named after the mineralogist Austin F. Rogers. Color is typically a bright green, but also colorless, white or pale yellow. Luster is sub-adamantine or silky.
Crystals are transparent to translucent.
Crystal Habits include acicular or bladed crystals in druses, radial aggregates or crusts, also fibrous. Cleavage is perfect in one direction lengthwise. Fracture is uneven. Hardness is 4 - 4.5. Streak is white to pale green.