A classic from a very old American locality that is a varietal of enstatite but apparently still a valid species as I read it. Note the curving, bronzy," well-defined crystals. From the noted W.W. Jefferis (1820-1906) Collection. According to MINDAT, this was a "copper mine located about 1 mile NW of Mt Washington and about 3 miles NW of Baltimore. Started 1845 and closed 1880. Reopened during the period 1905." Jefferis handling of the specimen would have been from the heyday of the mine, in the mid 1800s. Note the early museum accession number 6846, as well. This is a big, somewhat showy, display-worthy specimen from a long-vanished locality, proably under a building for 100 years now.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
== {{int:filedesc}} ==
{{Information
|Description=
{{en|1=Enstatite
:: Locality: Bare Hills Copper Mine (Smith Avenue Copper Mine), Bare Hills, Baltimore County, Maryland, USA (