Dims: 2.7 x 1.8 x 0.9" ( 6.9 x 4.7 x 2.4 cm)
Wt: 1.9 oz. (55g)
Dover Mine, Mineral County, Nevada, USA
The yellow, translucent crust along the top of this specimen is the svanbergite. The matrix upon which it rests is mostly a green translucent and quite hard mineral which I can't identify. The accompanying documentation said "fluorite and andalusite", and while the color does remind me of fluorite, the hardness is more like andalusite, but it could just be a green quartzite from it's appearance.