A mineral is a naturally occurring substance that is solid and inorganic and has a set chemical formula.  Differences in chemical composition and crystal structure distinguish various species, and are influenced by the mineral's geological environment.  They are described by characteristics such as habid, hardness, lustre, color, streak, clevage, fracture, parting, and specific gravity.  

The subdivisions of this category are based on scietific groups from the discipline of mineralogy.  

Objects: Mineral Export: JSON - XML - CSV Clay Seals and Sealings

Object U Number Museum Number (UPM Date Reg Number) Museum Number (BM Registration Number) Museum Number (UPM B-number) Description (Catalog Card)
17715 32-40-322 (none) (none) Seal. Persian type. Chalcedone. Pierced for threading, engraved lines on face [drawing 1:1].
7916 (none) (none) B16906 Stamp flat seal. One side convex. Calcite. Greyish. Above a reclining beast, possibly a jackal? and below a second beast with big head.
18284 33-35-170 (none) (none) Stamp seal. Facetted conical: chalcedony. Persian type. Two standing figures worshipping before an altar: crescent above.
13722 31-17-24 (none) (none) Stamp seal. Translucent white quartzite(?) oval, flat below & rounded above: on the flat base, traces of an animal design mostly done with a drill-point, in dots joined up by rough engraving; the design really unrecognisable now. [drawing 1:1]
16117 31-43-66 (none) (none) Stamp seal. Mauve chalcedony(?) Concial-suspended by copper wire. Roughly engraved with figure of a man. [drawing]
(none) 30-12-57 (none) (none) Unknown
(none) 30-12-58 (none) (none) Unknown
(none) 30-12-63 (none) (none) Unknown
(none) 30-12-64 (none) (none) Unknown
(none) 30-12-65 (none) (none) Unknown
(none) (none) (none) B15275 Unknown
(none) (none) (none) B16318 Unknown
(none) (none) (none) B16320 Unknown
(none) (none) (none) B16329 Unknown
(none) (none) (none) B16339 Unknown
17835A 32-40-308 (none) (none) [A-B] Two lion's heads. Silhouetted in profile. White calcite, originally painted red, but the color gone: both are really stamp seals with rough designs drill-cut on the flat lower surface. Both are pierced for suspension from the top of the head to the bottom of the mane. [drawing]
10796A (none) (none) B17569 [A] Cylinder Seal Lapis lazuli With [B] one gold cap Presentation scene before seated god. Minor deity leads in a worshipper by the hand. Behind these a palm tree. Attribute. Crescent moon. cf. U.11104, PG 829 lapis seal same subject found at same depth.
(none) 30-12-10 (none) (none) [no catalog card from field]
(none) 30-12-33 (none) (none) [no catalog card from field]
(none) 30-12-52 (none) (none) [no catalog card from field]
(none) 30-12-53 (none) (none) [no catalog card from field]
(none) 30-12-55 (none) (none) [no catalog card from field]
(none) 30-12-56 (none) (none) [no catalog card from field]
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Related Terms

Stone