The famous grossular garnets are found in fractures in red syenite and in the albitites and rodingites which are included in the dunite and peridotite.
On that day a few club members found the best pink grossular garnets ever collected at the mine.
Red grossular garnets are round in profusion, enclosed in a white to gray groundmass.
Grossular garnets have been reported with pale pink coloration, but darker red hues are only known from the study area.
The Bell mine, incredibly, produced only one known fine mineral specimen in so many years of activity: a cluster of green grossular garnets
associated with white acicular diopside crystals.
At Bologna he had a wide selection of grossular garnets
in sparkling red druses from the famous Val di Gava and Faiallo localities near Genoa, and of demantoid, the green variety of andradite which often occurs with asbestos in Val Malenco, Sondrio.
The lovely raspberry-red grossular garnets
from Coahuila, Mexico were also seen in quantity, as were some fine Arizona vanadinites from the Pure Potential mine.
Of course there were the Bavenotwinned, pink orthoclase crystals from Baveno, Piemonte, and the famous grossular garnets
to 2 cm across with diopside from Val d'Ala, Piemonte.
The by now well-known locality of Sierra de las Cruces, Coahuilla, continues to produce beautiful grossular garnets
. Their color somehow keeps improving, becoming more and more red.