export declare enum StructureKind {
    'Granular' = 0,
    'Blocky' = 1,
    'Subangular Blocky' = 2,
    'Prismatic' = 3,
    'Columnar' = 4,
    'Platy' = 5,
    'Singlegrained' = 6,
    'Structureless' = 7,
}