Calcite on Quartz - Guilin, Guanjxi, China

Mother Nature is truly an artist. Here we have two relatively common minerals but in a wonderful, eye-appealing combination. The calcite has a pleasing coffee colour with "nail-head" crystal terminations, which contrasts nicely with the white drusy quartz; itself in botryoidal masses.  Ex Steve Potvin collection. From Guilin, Guanjxi, China. 

Mineral: Calcite on Quartz
Locality: Guilin, Guangxi, China
Crystal System: Trigonal
Mineral Class: Carbonates
Provenance: Ex Steve Potvin Collection
Dimensions: 3 × 6 × 8.5 cm