A superb large cabinet plate from the mines at Naica, Mexico. Lustrous and translucent, sea-green fluorite cubes to 4.2 cm with an infinite number of second-generation fluorite overgrowths aesthetically scattered on massive sphalerite matrix covered with a variety of quartz forms. This fine, old-time piece dates to the 1970s. Ex. Brent Lockhart Collection, purchased in 1975.