yes, graywacke is a sedimentary rock
Graywacke
there is the 3 type of sandstone quatrz-arenite arkose graywacke
is a variety of sandstone generally characterized by its hardness, dark color, and poorly-sorted, angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --A-W-C--. That is, nine letter words with 3rd letter A and 5th letter W and 7th letter C. In alphabetical order, they are: graywacke
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern --A-W---E. That is, nine letter words with 3rd letter A and 5th letter W and 9th letter E. In alphabetical order, they are: graywacke meanwhile
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --A---C-E. That is, nine letter words with 3rd letter A and 7th letter C and 9th letter E. In alphabetical order, they are: avalanche graywacke heartache
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 5 words with the pattern G-A---C--. That is, nine letter words with 1st letter G and 3rd letter A and 7th letter C. In alphabetical order, they are: grallochs graphical graphicly graybacks graywacke
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern ----WA--E. That is, nine letter words with 5th letter W and 6th letter A and 9th letter E. In alphabetical order, they are: allowable allowance graywacke greywacke renewable screwable
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern ---YWA--E. That is, nine letter words with 4th letter Y and 5th letter W and 6th letter A and 9th letter E. In alphabetical order, they are: graywacke greywacke
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 4 words with the pattern G--Y-A-K-. That is, nine letter words with 1st letter G and 4th letter Y and 6th letter A and 8th letter K. In alphabetical order, they are: graybacks graywacke greybacks greywacke
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern G---W-C-E. That is, nine letter words with 1st letter G and 5th letter W and 7th letter C and 9th letter E. In alphabetical order, they are: graywacke greywacke