Rain Forest Jasper

Each month at the Wayne County Gem and Mineral Club Saturday club workshop our President (who doubles as our Collection Curator) brings along something from the club collection to raffle off to all who attend the workshop.  This month she arrived with a superb spread of unpolished slabs of Rain Forest Jasper, a very specific form of jasper from the Mt. Hay volcanic field in central Queensland, Australia.

Continue reading

Bumpus Brook Sand

It seems many sand collections focus on ocean beaches.  This is understandable.  The settings provide gorgeous destinations and the sands can be wonderfully textured.  I like beach sands, but don’t want to short-change river sands in my collection.  Unlike beaches, where provenance is hard, or even impossible, to define, river sands offer an interesting opportunity as their provenance can be determined.  Naturally, this is not easy if your sample comes from the Mississippi River delta but consider the other extreme, a sand sample from a mountain stream.

Last July, I traversed the White Mountains of northern New Hampshire on a return trip from Maine.  Just off Route 2 north of the Presidential Range is a short, 3 mile (5 kilometers) drainage between two ridges on the steep north slope of Mt. Madison.  It is called Bumpus Brook and a small bridge along Pinkham B Road allows access.  Much of the creek’s sediment load is larger than sand size with cobbles and small boulders strewn along the flowing stream.  But, at bends on both sides of the bridge, there are sand bars that can be sampled.

Continue reading