You are correct, Beth- I googled it- although the material which I
always thought of as zincite is a secondary product of zinc smelting
and is formed in the chimneys of zinc smelting facilities in Poland,
I now know that zincite also occurs naturally, the best known
sources being the zinc and manganese mines of Sterling Hill and
Franklin, New Jersey.

Here is the link-


Lee Einer

Beth, Zincite does in fact occur naturally, and in New Jersey of all
places. Jerry in Kodiak

The problem I found with zincite is that although the crystals can
be very pretty they are extremely brittle and therefore would have
very little practical use in jewelry. They will shatter like glass if impacted. Dee