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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
monoclinic
Space Group
C2/m
a
12.26—12.28 (12.2667)
b
3.58—3.6 (3.5867)
c
8—8.11 (8.0733)
alpha
90
beta
92.5—96.25 (93.75)
gamma
90
volume
351.562—355.616 (354.2647)
Based on
3
measurements
Chemical context
Stoichiometric formulas
Metahewettite
mindat.org
March 13, 2023
CaV
6
O
16
·3H
2
O
IMA
March 13, 2023
CaV
5+
6
O
16
· 3H
2
O
mineralogy.rocks
Aug. 30, 2022
CaV
5+
6
O
16
·3H
2
O
Elements recorded on EPMA
3
Na
3
O
3
V
2
Ca
2
H
Physical properties
Color
Color entities, recognized using a custom trained NER model
deep red
Color note
Original color note from the source
Deep red; red to orange in transmitted light
Streak
Streak entities, recognized using a custom trained NER model
maroon
brownish red
Streak note
Original streak note from the source
Maroon to brownish red
Lustre
Silky
Dull
Transparency
Translucent
Measured density
2.51—2.94
Calculated density
3.05