Q:

What type of rock is pipestone?

A:

Quick Answer

Pipestone, also called catlinite, is a red clay formed from metamorphosed mudstone. It can appear in a range of colors, from salmon pink to deep red. The color is determined by the concentration of iron oxide in the sample. Most blocks have small white impurities called "stars."

Know More
What type of rock is pipestone?
Credit: Marilyn Angel Wynn Nativestock Getty Images

Full Answer

As of 2014, pipestone is a relatively rare metamorphic rock type. In North America, it is most abundant in southwestern Minnesota, where native people have quarried it to make ceremonial objects for 3,000 years. The rock's name derives from its common use in carved pipes that are used in the religious ceremonies of local tribes.


Is this answer helpful?

Similar Questions

  • Q:

    What type of sedimentary rock is permeable?

    A:

    Limestone and sandstone are usually permeable. The rule of thumb is that coarse-grained rock is more permeable than fine-grained rock. Rock also needs a fairly low level of cementation to be permeable.

    Full Answer >
    Filed Under:
  • Q:

    What type of rock is talc?

    A:

    Talc is a metamorphic rock, which means it was originally a different kind of rock that changed under heat and pressure. Talc is composed of hydrated magnesium silicate, and its chemical formula is Mg3Si4O10(OH)2.

    Full Answer >
    Filed Under:
  • Q:

    What type of rock is flint?

    A:

    Flint is a sedimentary rock. It is naturally found in several regions of the world, including Europe, West Asia, China and North Africa.

    Full Answer >
    Filed Under:
  • Q:

    How is rock gypsum formed?

    A:

    According to Georgia Southwestern State University, rock gypsum is formed by the evaporation of concentrated solutions like seawater. It is a chemical precipitate with a texture ranging from massive or granular to fibrous, depending on the shape and size of the gypsum crystals.

    Full Answer >
    Filed Under:

Explore