Premium
Non‐Destructive Investigation of a Scalenohedral Hematite Pendant from B ahrain, c .1800 bc
Author(s) -
Makovicky E.,
Parisatto M.,
Højlund F.
Publication year - 2015
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/arcm.12088
Subject(s) - hematite , calcite , platy , pseudomorph , mineralogy , carbonate , geology , provenance , porosity , cave , geochemistry , materials science , archaeology , composite material , paleontology , metallurgy , quartz , geography , geotechnical engineering
A scalenohedral hematite pendant (presumably a pseudomorph after a calcite crystal), excavated on B ahrain (ancient D ilmun ) in the P ersian G ulf from layers dated to c.1800 bc , was investigated using X‐ray computed microtomography. The internal porosity was studied in 3 D , showing a preferential concentration of small pores in the central part, where carbonate remnants might still be present, and larger, flattened, elongated voids in the subsurface portion. Part of the scalenohedron can be described as an intergrowth of platy hematite crystals. Microtomography also yielded data on pore‐size distribution. Considerations are given to the genetic model and the provenance of the hematite pendant.