Argillite ( /ˈɑːrdʒɪlaɪt/) is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified...

Graptolitic argillite (also known as dictyonema argillite, dictyonema oil shale, dictyonema shale, or Tremadocian black shale) is a marinite-type black...

Haida argillite carvings are a sculptural tradition among the Haida indigenous nation of the Northwest Coast of North America. It first became a widespread...

Argillite is an unincorporated community on the Little Sandy River in Greenup County, Kentucky, United States. It sits at the southern end of the confluence...

Antilles are located in Cuba. They consist of metamorphosed graywacke, argillite, tuff, mafic igneous extrusive flows, and carbonate rock. It is estimated...

works carved in relatively soft stone such as soapstone, serpentinite, or argillite have also become popular. Traditional Inuit clothing and footwear is made...

The Mission Argillite is a geologic formation in Washington (state). It preserves fossils dating back to the Permian period. Earth sciences portal United...

The Adams Argillite Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cambrian period. Earth sciences portal Alaska...

Oligocene 33 to 23 million years ago. Tablelands are often topped with argillite gravel and weathered quartzite, occasionally underlain by shale. The glaciated...

Massachusetts. The upper part of the Boston Bay Group consists of the Cambridge Argillite, which overlies the Roxbury Conglomerate. The Roxbury Conglomerate traditionally...