Rock crystal is another name for Quartz, and is colorless, has little to no clevage, and has a silicon-oxygen framework.  

Objects: Rock Crystal Export: JSON - XML - CSV

Object U Number Museum Number (UPM Date Reg Number) Museum Number (BM Registration Number) Museum Number (UPM B-number) Description (Catalog Card)
12668 (none) (none) (none) Bead. Rock crystal. Lentoid. Paste tube through center. [drawing]
12631 (none) 1929,1017.326 (none) [A] Beads. A motley collection including: rock crystal balls, hematite balls, shell and (Chrysoprase?) [chalcedony] bugles (broken), [B.1-.3] 2 unpierced steatite cylinders (for seals). 1 - unpierced marble cylinder (ditto) and [C] fragment of an obsidian mace head. (truncated pear shaped).
12086 (none) 1929,1017.379 (none) Cylinder Seal. Rock crystal. Hero fighting rampant lion; repeated twice. White paste core run down centre of seal.
11892 (none) (none) (none) Beads. Very slender bugles, 3 of lapis, 3 of gold, & a pear-shaped rock crystal pendant.
11473 (none) (none) (none) Cylinder seal. Of rock crystal. Unfinished. 3 figures, 1 seated, 2 standing, have been roughly ground out all but the heads: no engraving as yet, but grinding only. The cylinder is bored and in the bore-hole ridges have been worked to take colored paste.
11204 (none) (none) (none) Beads. (7). Large lapis double conoid; oolite? barrel bead; 2 gold ring beads; 2 carnelian ball beads; 1 rock crystal double conoid.
11117 (none) 1928,1010.682 (none) Necklace. Lapis bugles and ring beads, crystal ring beads, all small sized. One gold bead found in position between 2 crystal rings, but general order was not discoverable. A few beads also found in this order: 1 crystal ring, 2 minute lapis balls, 1 gold ball, 1 crystal ring bead, 2 lapis balls, 1 gold ball, 1 lapis bugle.
10793 (none) (none) (none) Necklace Rough gold ball beads. Large flattened double conoid agate Sard lentoid-blue Carnelian bugles Rock crystal double conoid Banded sard bugle For order see Field Note
10304 (none) (none) (none) 6 Beads Two carnelian bugles, & 4 crystal ring beads - strung alternatively.
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Related Terms

Amethyst