Quartz ''cast'' after Calcite

Item Description

A classic specimen from the famed Mineral Farm (Mineral Farm Mine) just above Ouray, Colorado (near the road to the Camp Bird Mine). This locality is well-known among the locals for its beautiful Quartz ''casts'' (epimorphs/perimorphs) after Calcite, and this piece is a great example of said material. This piece features sparkling white little Quartz crystals which have coated scalenohedral Calcites, which were later dissolved away, leaving the hollow "shells" of the Quartz behind. The largest "cast" measures 3.3 cm. A later generation of translucent, larger Quartz crystals can be seen on the piece as well for a nice touch. No major damage on the top/display side, and if you flip the piece over, you can see the hollow openings where the Calcite once existed.
From the collection of Gary Weaver of Prescott, Arizona (1944-2019). Gary was an electrical engineer who worked for many years for Hughes Aircraft in California. After retiring to Prescott, Arizona in the early 2000s, Gary rekindled his childhood love of minerals, amassing a collection of roughly 2000 specimens focusing on localities in which he and his wife had lived or visited (Mexico, Peru and the western / southwestern United States). You can read Gary's obituary here https://www.dcourier.com/news/2019/apr/27/obituary-gary-richard-weaver/