Grossular from Jeffrey Mine, Québec, Canada - image 1

Grossular from Jeffrey Mine, Québec, Canada

$2,000.00

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Here we have an excellent specimen of cinnamon orange hessonite garnet on green diopside from the Jeffrey Mine with crystals up to 1cm. For those who may not know hessonite is a varietal name for grossular garnets that exhibit a distinct orange coloration that is caused by iron oxide in the solid solution. Hessonite garnets actually have a lower hardness and density than other garnet varieties and was named “Hesson” which in Greek means “inferior” which is ironic considering how iconic these specimens have become among collectors. The Jeffrey mine is perhaps the finest source of Hessonite garnets in the world. This particular specimen has sharp edges and lustrous faces that show off beautiful growth striations. This specimen is in really great condition, I note no damage beyond the contacted periphery. Comes with a custom cut acrylic base.

Product details

SpeciesGrossularDiopside
SizeSmall Cabinet
Dimensions9.0 x 5.5 x 4.5 cm
Listed on05/16/2026
LocalityCanada, Québec, Jeffrey Mine
SKU28904

Current owner

DanZ Rockshop
DanZ RockshopFeatured
Arvada, Colorado, USA
2,136 for sale·9 sold

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.