Grossular, Diopside - image 1
Photo by Beth Van Allen

Grossular, Diopside

1
Grossular crystals with diopside, 11.4 cm, from the Jeffrey quarry, Asbestos, Québec. No repairs or restorations. This specimen was the 2020 Lidstrom Award winner. It is very similar in crystal size, crystal quality, matrix, and encrustation to the cover specimen of the Lithographie issue on “Garnet, Great Balls of Fire” (ExtraLapis Monograph No. 11). We think it is very likely that both specimens were originally part of a single larger plate. Ex Francesco Spertini collection; Spertini was the long-time company geologist at the mine. Photo: Beth Van Allen, courtesy of The Arkenstone.

Product details

SpeciesGrossular, Diopside
SizeCabinet
Dimensions11.4 cm
Added on02/13/2026
LocalityCanada, Québec, Jeffrey Mine
Publications
  • Mineralogical Record Mineral Collecting In Texas page 45
Current owner
CC
The Carabas Collection
Member since 2026
Previous owners
DateCollectorAcquisition price
—Francesco SpertiniNot disclosed

Learn more

Grossular
Mineral guide
Learn about Grossular
calcium-aluminum garnet with emerald to tsavorite greens and hessonite oranges; dodecahedra/trapezohedra in skarns, prized for color and rarity.
Grossular
Regional guide
Grossular from Jeffrey Mine, Canada
from Jeffrey Mine, Canada - gemmy orange to pink garnet on diopside-bearing matrix, classic rodingite formation, prized for color and rarity.
Locality guide
Jeffrey Mine
Jeffrey Mine, Canada — storied locality for Ca-silicates from rodingite seams, yielding gemmy orange grossular and vesuvianite; prized by serious collectors.