Metahewettite

A tertiary mineral resulting from the dehydration of Hewettite as impregnations in sandstone.

History

Activities related to discovery and approval of the group members

Structural context

Metahewettite
Crystal System monoclinicSpace Group C2/m
a12.26—12.28 (12.2667)
b3.58—3.6 (3.5867)
c8—8.11 (8.0733)
alpha90
beta92.5—96.25 (93.75)
gamma90
volume351.562—355.616 (354.2647)

Based on 3 measurements

Chemical context

Stoichiometric formulas

Metahewettite
mindat.org
  • March 13, 2023CaV6O16·3H2O
IMA
  • March 13, 2023CaV5+6O16 · 3H2O
mineralogy.rocks
  • Aug. 30, 2022CaV5+6O16·3H2O

Elements recorded on EPMA

3
Na
3
O
3
V
2
Ca
2
H

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • deep red
    Color noteOriginal color note from the source
    Deep red; red to orange in transmitted light
    StreakStreak entities, recognized using a custom trained NER model
    • maroon
    • brownish red
    Streak noteOriginal streak note from the source
    Maroon to brownish red
    Lustre
    Silky
    Dull
    Transparency
    Translucent
    Measured density
    2.51—2.94
    Calculated density
    3.05