public catalogue · open access · last index pass 2026-05-08 08:14:02 UTChost: cat-pub-04 · build 0.14.3-prototype · rev rA9F2
overviewcatalogueAM-2025-10006-A

AM-2025-10006-A · Quartz, var. citrinewithdrawn

This record has been withdrawn from active circulation. Historical metadata is retained for citation purposes only. Contact the registry before referencing this accession in new publications.
physical & structuralrev. 3
designationQuartz, var. citrine
chemical formulaSiO₂
classificationTectosilicate / Quartz group
crystal systemTrigonal
mohs hardness7
density (g/cm³)2.66
colourFaintly honey yellow
type localityCarrock mine, Cumbria, England
raman spectroscopy532 nm · pass A
200400600800100012001400Raman shift (cm⁻¹)intensity (arb.)1282052654636971085
λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mmfig. 1 · raman.am-2025-10006-a.svg

reported peaks (cm⁻¹): 128, 205, 265, 463, 697, 1085

notessubmitter remarks + registry

Crystals up to 17 mm on edge, with euhedral faces. Specimen mounted on a fragment of host rock.