About 2 dozen specimens were recovered from the 1220 level. One specimen in the Tysons' collection has a halo of calcite xls surrounding lustrous Antimony rhombs. The largest plate recovered is in the Seaman Museum in Michigan.
Habit:
Simple rhombs to 2 cm
Colour:
grey to lustrous tin white
UV Fluorescence:
none
Quality of samples:
Excellent - world class for species or very significant. (!!)