dogtooth calcite w/phantoms, Hubei, China bermejillo

dogtooth calcite w/phantoms, Hubei, China bermejilloMulti colour dogtooth calcite cluster from Daye County, Hubei Province, China. The calcite runs from grey to golden to deep orange. The grey phantoms are likely caused by marcasite inclusions. Self standing on the matrix. Very good condition; 1 cleaved point provides a window into the phantom zones. 5x2x2. 5

The coral's organic material has been replaced by silica and other minerals

Permineralization is a type of fossilization that happens when minerals such as: chlorite

Specimen measurement is 3” x 2

Signed by the artisan but I cannot figure out the marker’s mark (in case anyone knows)

Translucent cubes

Yaogangxian Mine

From Santa Eulalia

The large crystal on the left looks to be twinned and a double termination

Excellent quality

The domed back is coated in rainbow iridescent marcasite and pyrite

Rather than diminish

fossilized marine creatures (cephalopods) from the Mesozoic era (252 to 66 million years ago) that visually resembled our modern-day Nautilus