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...te has slightly higher relief and gypsum has lower relief; both gypsum and barite have strong cleavage.

...tain barite, the Pe measurement might locate natural [[fracture]]s. If the barite penetrates the fractures, the Pe curve shows considerable increases.

^b_{Mud types: F = freshwater (low salt), S = high salt, B = barite, K = high potassium salt, O = oil-based.}<br>

...n]] || Identify lithology and well-to-well correlation || Does not work in barite mud, is a pad device, and uses a radioactive source ...borehole wall rugosity. The measurement is not valid in muds weighted with barite. The recording can be used both for correlation of formations between wells

...e salts or by addition of solids, termed ''weight material'' (for example, barite is added to the mud to increase the density). Density values can be express

...eral points. Arrows indicate the affects of gas, secondary porosity, salt, barite, and heavy minerals. | Barite || BaSO₄ || 4.09 || –1. || 2. || || || 266 82 || 1091. || || |

...ect. Thus, a few percent of iron masks basic lithological differences, and barite (usually with mud weights over 10 ppg) makes the log unusable.

...cements include: hematite, limonite, feldspars, [[anhydrite]], [[gypsum]], barite, clay minerals, and zeolite . Silica cement can consist of either [[quartz]