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-2017-10021-A

AM-2017-10021-A · Sideritepending

The classification below is preliminary. Spectroscopic confirmation is incomplete; values shown reflect the most recent analytical pass and may be revised without notice.
physical & structuralrev. 3
designationSiderite
chemical formulaFeCO₃
classificationCarbonate / Calcite group
crystal systemTrigonal
mohs hardness3.5 – 4.5
density (g/cm³)3.88
colourTarnished bronze
type localityBancroft, Ontario, Canada
raman spectroscopy532 nm · pass A
200400600800100012001400Raman shift (cm⁻¹)intensity (arb.)183283
λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mmfig. 1 · raman.am-2017-10021-a.svg

reported peaks (cm⁻¹): 183, 283, 1735

notessubmitter remarks + registry

Standard siderite reference specimen. Supplied as a single piece on a small fragment of host matrix.