Species: Grossular Garnet
Locality: Jeffrey Mine (“Johns-Manville Mine”), Val-des-Sources, Les Sources RCM, Estrie, Québec, Canada
Dimensions: 11.5 x 7 x 3.5 cm.
The Jeffrey mine, a now-defunct giant open bit asbestos mine located in rural Quebec, Canada, is world-famous for it’s superb, colorful, often gem-quality crystals of grossular garnet and vesuvianite, considered by many connoisseurs to be the world’s finest examples of these highly-collectible species. This gorgeous cabinet-size specimen features a “carpet” of lustrous, completely gemmy orange grossular crystals to over 1 cm each, with wonderfully bright luster. Cabinet-size Jeffrey mine garnet specimens of this quality have become quite scarce and sought-after on the market, and this is a superbly showy example of this true Canadian mineral classic. There is one professional repair, which has been done in a leading mineral lab and is basically impossible to see. In excellent condition otherwise. Annette Slade photo.