Well-known construction site locality close to the Old Mine Park (Hubbard) Tungsten Mine. Excellent specimens of fluorescent
scheelite are found here as well as occasional
topaz, fluorite var.
chlorophane and excellent
beryl crystals in calcite pods in schist. Heitner (1998) indicates the material recovered was beryl, with no mention of emerald. The report of true emerald from this locality remains controversial and any trace quantities of chromium or other coloring agents that might or might not exist in beryl from this locality do not yield true emerald color at this locality, although some unanalyzed beryls from this locality have a peculiar greenish yellow tinge.
Ref.(in part): Heitner, H., Window of Opportunity, Field Collecting at Trumbull, Connecticut, Rocks & Minerals, May-June, p. 198, 1998.
57 entries listed. 47 valid minerals. 2 erroneous literature entries.
