Lake Huron Puddingstones

Puddingstone, also known as Jasper Conglomerate, Pudding Stone, Lorrain Conglomerate, Quartz Conglomerate, Plum Puddingstone is a rare conglomerate found in only a few places in the world. Puddingstone was named by Cornish miners who thought the stone resembled their traditional Christmas pudding made with raisins, cherries, currents and nuts.
In Michigan, in Lake Huron, St. Joseph and Drummond Islands produce a distinct Puddingstone. This stone forms in a semi-transparent quartzite, sandstone matrix. The matrix, background, main rock is usually white, cream, sandy but can be a wide variety of colors with pinks, greys and browns included.
The inclusions, pieces of imbedded pebbles & stones, can vary as well. Jasper, from bright, lipstick red to browns, purples, oranges and pinks, is the main inclusion. Other minerals could be quartz, chert, hematite, black flint, green quartz, and even fossils.
This journal is my research into the wonders of Lake Huron Puddingstone.

Monday, September 22, 2014




- Posted using BlogPress from my iPad
Posted by at No comments:

Friday, September 12, 2014

Tumbling Puddingstones

I've found that using my rock tumbler with stage 1 grit, takes all the rough edges off my Puddings while leaving their...integrity, general shape intact.
 Tumbling usually takes just 2-4 days and they even pick up a nice shine. I don't feel that any further tumbling or polishing is needed.
Posted by at 1 comment:
Subscribe to: Posts (Atom)