Farther north, the Trinity River has been known to produce Jade, but is probably better known for it's deposits of "California Jade" which is not Jade at all. It is an intimate mixture of Idocrase and white garnet which is actually harder than jade and takes a fine polish.
I have collected quite an amount of the California Jade over the
years (being a Californian) such as at the deposits at Pulga. It has
always been my understanding however that this material was massive
vesuvianite. Is that not correct?
Also, on the California Jade thread, I have collected quite a bit of
material from the beaches including popular areas like Jade Cove and
Willow Creek. I have found that a considerable amount of this
material is quite unstable, and cracks apart when slabbed or ground.
Also, most of the material that I have collected is a very dark green
(with or without mottling) to black. The pieces that I have been able
to cut however have taken a very good polish and was worth the
collecting effort. In some localities in Northern California, you can
litterally view entire BOULDERS of solid jade just sitting alone in
fields in the middle of no where. I have always wondered why some
enterprising persons have not collected these and slabbed them for
table tops, etc.
Paul Ahlstedt / Moderator
The Gemking Daily Faceter