I am really fond of this old fluorite from the venerated Heights Mine even though the crystals do not appear to be twinned in the "classic" manner you expect. The crystal is also rather large. That makes it all the more unusual! The combination of drusy, white, quartz surrounding the green, gemmy, well formed, 3.5 cm fluorite crystals, is as good as it gets for these great pieces. They fluoresce somewhat, even in just daylight... in fact there is a hint of purple-blue when viewing the fluorite through the side faces just in normal lighting. There is also a second generation of fluorite which has grown on the drusy quartz. Formerly in the noted collection of Lindsay Greenbank. Overall, both aesthetic and significant as a classic!