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-2021-10004-A

AM-2021-10004-A · Scheeliteunverified

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
designationScheelite
chemical formulaCaWO₄
classificationTungstate
crystal systemTetragonal
mohs hardness4.5 – 5
density (g/cm³)5.95
colourColourless to pale brown
type localityBoudi, Souss-Massa, Morocco
raman spectroscopy532 nm · pass A
200400600800100012001400Raman shift (cm⁻¹)intensity (arb.)337412798909
λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mmfig. 1 · raman.am-2021-10004-a.svg

reported peaks (cm⁻¹): 337, 412, 798, 909

notessubmitter remarks + registry

Crystals up to 8 mm on edge, partly etched. No accompanying matrix.