Chromian Diopside and Grossular Garnet - Hunting Hill, Maryland, USA
Green Chromian Diopside, orange Grossular Garnet, with Calcite and micro Pyrite. This type of rock is called "rodingite".
from Hunting Hill quarry (Rockville Crushed Stone Quarry; Travilah Quarry; Rockville Quarry; Bardon Stone Quarry; Aggregate Industries Quarry), Rockville, Montgomery County, Maryland, USA
this quarry is closed
Measures approximately 2 x 1.75 x 1.5 inch, 5.51 oz / 51 x 44 x 38 mm, 156g
Item # A0040218