CLASSIFICATION OF ANHYDRITE — PRACTICAL APPROACH

Abstract
The inconsistent usage of anhydrite terms in the past has pointed out the need to standardize terminology. To answer this need we have developed a practical anhydrite classification in which two basic properties are considered—structures and textures. The structural types are classified on the basis of four parameters: external form, anhydrite-to-matrix relationship, bedding, and distortion. The textural types are classified by size, shape, and spatial relationship of the crystals within the anhydrite masses. This anhydrite classification is believed to have world-wide applicability.

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