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bn:00257837n
Noun Concept
Categories: Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica, Articles with short description, All articles needing additional references, Sandstone, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
EN
greywacke  grauwacke  graywacke  graywackes  greywackes
EN
Greywacke or 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 sand-size lithic fragments set in a compact, clay-fine matrix. Wikipedia
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EN
Greywacke or 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 sand-size lithic fragments set in a compact, clay-fine matrix. Wikipedia
A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix. Wiktionary
Hard dark sandstone. Wiktionary (translation)
IS A
sandstone
DESCRIBED BY SOURCE
Brockhaus and Efron Encyclopedic Dictionary
Wikipedia
EN
greywacke
Wikidata
EN
greywacke
Wiktionary
EN
greywacke
Wikipedia Redirections
EN
grauwacke, graywacke, graywackes, greywackes, subgraywacke, wacke

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