Old Vein Lace Agate Rough Chunk! Fossil Stromatolite Each polished display specimen shows

Each polished display specimen shows great flash on at least one side

Sonoran Dendritic Rhyolite is a Rhyolite from Mexico that often features some gorgeous aztec like colors and patterns

setting flat with the fossil specimen at the highest point for detail

It features a hybrid of both varieties

They first appeared during the Silurian Period (435 million to 410 million years ago) and were abundant and widespread in the seas of the Jurassic and Cretaceous periods (175 million to 65 million years ago)

Old Vein Lace Agate Rough Chunk! Fossil Stromatolite Each polished display specimen showsThis is a retapped old vein Crazy Lace Agate! Old Vein Crazy Lace has some wild and crazy patterns that make some really unique scenes, but it does have some softer minerals like Calcite and Feldspar, and will more than likely need to be treated before polishing or cabbing. This feldspar and calcite oftentimes takes a black tint though, making for some really killer scenes! Weight: Approx 1 lbs 2. 2 oz Measurements (inches longest approx): 4 x 3. 1 x