Polyphite-VII
A material that is NOT an approved mineral species
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Formula:
Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6
Lustre:
Vitreous
Hardness:
5
Crystal System:
Triclinic
This page provides mineralogical data about Polyphite-VII.
Unique Identifiers
Mindat ID:
7241
Long-form identifier:
mindat:1:1:7241:6
GUID
(UUID V4):
(UUID V4):
b6bcbe4f-b120-4640-a3e8-32ac16c985fb
Physical Properties of Polyphite-VII
Vitreous
Hardness:
5 on Mohs scale
Optical Data of Polyphite-VII
Type:
Biaxial (-)
RI values:
nα = 1.600 nβ = 1.658 nγ = 1.676
Max Birefringence:
δ = 0.076
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v weak
Chemical Properties of Polyphite-VII
Formula:
Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6
Crystallography of Polyphite-VII
Crystal System:
Triclinic
Synonyms of Polyphite-VII
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Polyphite-VII
mindat.org URL:
https://www.mindat.org/min-7241.html
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Mineral Dealers: