My Mineral	Web Mineral
Hardness	3-4	3.5-4
Cleavage	3 perfect	3 perfect
Luster	vitreous; silky	vitreous; pearly
Streak	white	white
Color	pale rose pink; gray	pale rose pink; gray; brown-white
Other	No HCl reaction; cannot scratch glass

Table 1. My physical property test observations versus the Mineralogical Society of America Mineral Identification Key found on the web.  Miscellaneous details that helped me further determine my unknown mineral are listed under "Other".