GeoMiner Free earth-science tools

Built by a geologist

Wackestone identification and geology

Wackestone rock reference specimen

Mud-supported limestone containing 10% grains fossils, peloids floating in a carbonate mud micrite matrix. Texture: Mud-supported with grains. Rock type: Sedimentary Carbonate. Grain size: Mud matrix with scattered grains. Minerals present: Calcite micrite matrix, Fossil fragments, Peloids. Formation: Deposits in low-energy carbonate environments where mud accumulates with scattered skeletal fragments. Common geological settings: Worldwide carbonate platforms; classified using Dunham classification system. Common look-alikes and related entries: Mudstone carbonate, Packstone, Limestone.

Sources, scope & corrections

These authoritative resources support category-level nomenclature, terminology, identification methods, and safety. When a specimen-specific safety warning appears, the public-health source listed here directly supports that precaution. They are not line-by-line citations for every other property on this entry, and natural specimens vary.

Editorial owner
GeoMiner
Last updated
2026-03-30T14:39:07.502984+00:00
Review status
Published; not independently peer-reviewed
  • Rocks — U.S. National Park Service. Authoritative overview of rock groups, the rock cycle, and geologic processes.
  • Can you identify my rock or mineral? — U.S. Geological Survey. Identification limitations and routes to in-person professional verification.

Read GeoMiner's editorial methodology or report a content issue.

Common questions

What is Wackestone?
Mud-supported limestone containing 10% grains fossils, peloids floating in a carbonate mud micrite matrix.
How can you identify Wackestone?
Compare several properties rather than relying on colour alone. This entry records rock type: Sedimentary Carbonate; texture: Mud-supported with grains; grain size: Mud matrix with scattered grains; common minerals: Calcite micrite matrix, Fossil fragments, Peloids. Confirm an important identification with additional field tests or qualified laboratory work.
How does Wackestone form?
Deposits in low-energy carbonate environments where mud accumulates with scattered skeletal fragments.
Where is Wackestone commonly found?
Worldwide carbonate platforms; classified using Dunham classification system.
What is Wackestone commonly confused with?
Wackestone may be confused with Mudstone carbonate, Packstone, Limestone. Compare multiple diagnostic properties because colour and surface appearance can overlap.

JavaScript is loading the interactive GeoMiner experience. The identification tools provide educational candidates, not laboratory confirmation.