Large ferruginous quartz cluster Pyrite since this fluorite from this

since this fluorite from this locale tends to have a cubic crystal habit

all examples were translucent and not opaque

they reproduce quickly and are hardy to a range of conditions

Approx size and weight 3/4–1 1/3 lb

UV REACTIVITY microcline feldspar can have slight red fluorescence which was present in many of these specimens

Large ferruginous quartz cluster Pyrite since this fluorite from thisLocale: Morocco Approx dimensions: 5. 5 x 4 x 2. 5", longest crystal 6 cm Approx weight: 772g Known as red or ferruginous (iron bearing) quartz, this unusual variety of quartz gets its color from iron oxides, typically hematite. The quartz in this specimen initially grew colorless; broken crystals along the edge reveal the quartz crystals have a clear core bordered by a thin top layer of brick red quartz. A change occurred during the growth process